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testo 440 - Vane kit with Bluetooth (Ø 3.9")

0563 4403
Volume flow measurement at outlets with the air velocity and IAQ measuring instrument testo 440
  • A measuring instrument for all climate-related parameters
  • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, humidity and temperature in ventilation ducts or at air outlets
  • Precise: combine the vane probe with Bluetooth with the telescope for ceiling outlets or the funnel set for plate outlets (please order separately) as required
  • Extendible with a wide range of probes
  • Wireless measurement with Bluetooth probes
  • USB interface for exporting measurement reports as CSV files
  • This testo 440 kit is great for carrying out measurements at air outlets. The testo 440 air velocity and IAQ measuring instrument and its vane probe (Ø 3.9") with temperature sensor can all be safely stored in the included case.
    • SmartProbes-testo-440-overview-2000x1500.jpg

      A measuring instrument for all climate-related parameters

    • testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401)
    • Vane probe (Ø 3.9") with Bluetooth, including temperature sensor (consisting of 3.9" vane probe head, handle adapter, and Bluetooth handle), bracket for testovent measurement funnel, 4 AA batteries, and calibration protocol (0635 9431)
    • Basic case for testo 440 and 1 probe

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        CO2 probe (digital) with Bluetooth® including temperature and humidity sensor
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          :
          0632 1551
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            :
            0632 1552
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              :
              0632 1550
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              CO probe (digital) with Bluetooth®: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm
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                0632 1271
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                  :
                  0632 1272
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                    :
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                      :
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                        :
                        0636 9731
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                        Humidity/temperature probe (digital), wired
                        Humidity/temperature probe (digital), wired: for measurements in rooms, ventilation ducts, refrigeration systems and heat pumps – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C
                         
                          :
                          0636 9732
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                          Humidity/temperature probe head
                          Humidity/temperature probe head: for attachment to universal Bluetooth® or cable handle – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C
                            :
                            0636 9730
                          • Humidity probes
                            High-precision humidity/temperature probe (digital) with Bluetooth®
                            High-precision humidity/temperature probe (digital) with Bluetooth®: for measurements in cleanrooms and laboratories, and critical processes in the pharmaceutical, industrial and food sectors, as well as in storage, refrigerated and work rooms or in air conditioning/ventilation ducts - accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)
                              :
                              0636 9771
                            • Humidity probes
                              High-precision humidity/temperature probe (digital), wired
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                                :
                                0636 9772
                              • Humidity probes
                                High-precision humidity/temperature probe head: for attachment to a universal Bluetooth® or cable handle – accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)
                                  :
                                  0636 9770
                                • Humidity probes
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                                    :
                                    0636 9775
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                                    testo 605i
                                      :
                                      0560 2605 03
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                                      testo 805i
                                      testo 805i – infrared thermometer with smartphone operation
                                        :
                                        0560 1805
                                        $ 136.00
                                        1
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                                        Waterproof immersion/penetration probe with NTC temperature sensor
                                        Waterproof immersion/penetration probe (NTC temperature sensor) for temperature measurements in liquids and semi-solid media – measuring range -50 to +150 °C, accuracy ±0.2 °C (-25 to +74.9 °C)
                                          :
                                          0615 1212
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                                          Robust air probe with NTC temperature sensor
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                                            :
                                            0615 1712
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                                            Clamp probe with NTC temperature sensor for measurements on pipes (Ø 6-35 mm)
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                                              :
                                              0615 5505
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                                              Robuster Luftfühler, TE Typ K
                                                Rugged air probe, T/C Type K  
                                                :
                                                0602 1793
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                                                  :
                                                  0602 0393
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                                                  Fast-reaction paddle surface probe
                                                  Fast-reaction paddle surface probe, for measurements in inaccessible places, e.g. narrow apertures and slots, TC Type K
                                                    :
                                                    0602 0193
                                                  • Temperature probes
                                                    Efficient, waterproof surface probe with small measurement head
                                                    Efficient, waterproof surface probe with small measurement head for flat surfaces, T/C Type K
                                                      :
                                                      0602 0693
                                                    • Temperature probes
                                                      Fast-action surface probe with sprung thermocouple strip
                                                      Fast-action surface probe with spring thermocouple for uneven surfaces, short-term to +932°F, T/C Type K
                                                        :
                                                        0602 0993
                                                      • Temperature probes
                                                        Magnetic probe (TC type K) - for surface temperatures
                                                        Magnetic probe, adhesive force approx. 20 N, with magnets, for measurements on metal surfaces
                                                          :
                                                          0602 4792
                                                        • Temperature probes
                                                          Magnetfühler, Haftkraft ca. 10 N, mit Haft-Magneten
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                                                            :
                                                            0602 4892
                                                          • Temperature probes
                                                            Waterproof surface probe with widened measurement tip
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                                                              :
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                                                              Pipe wrap probe with velcro strip
                                                              Temperature probe with Velcro (TC Type K)
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                                                                Pipe wrap probe for pipe diameter 5 to 65 mm
                                                                Pipe clamp probe for pipe diameter 0.2 to 2.5'', with replaceable measuring head. Measuring range to 536 °F short-term
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                                                                  0602 4592
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                                                                  Clamp probe for measurements on pipes
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                                                                    0602 4692
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                                                                    Efficient and fast-action immersion probe, waterproof
                                                                    Efficient and fast-action immersion probe, waterproof, T/C Type K
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                                                                      Fast-action, waterproof immersion/penetration probe
                                                                      Super-quick, waterproof immersion/penetration probe, T/C Type K
                                                                        :
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                                                                        Tauch-Messspitze, biegsam, TE Typ K
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                                                                        Measuring range: -328° to 1832 °F (-200° to 1000 °C)
                                                                          :
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                                                                            Immersion measurement tip, flexible, for measurements in air
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                                                                                  Wasserdichter Lebensmittelfühler aus Edelstahl (IP65)
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                                                                                      :
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                                                                                    • Temperature probes
                                                                                      Thermocouple with TC adapter, flexible, length 1500 mm
                                                                                      Thermocouple with T/C adapter, flexible, 60 in. long, fibre glass, T/C Type K
                                                                                        :
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                                                                                      • Temperature probes
                                                                                        Thermocouple with TC adapter, flexible, 1500 mm long, PTFE
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                                                                                          :
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                                                                                            :
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                                                                                          • Temperature probes
                                                                                            Robust, fast-action air probe (digital)
                                                                                            Robust, fast-action air probe (digital)
                                                                                              :
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                                                                                            • Temperature probes
                                                                                              Immersion/penetration probe (digital)
                                                                                              Immersion/penetration probe (digital) with Pt100 temperature sensor: for temperature measurements in liquids and pastes – measuring range -100 to +400 °C, accuracy up to ±0.15 °C
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                                                                                                  High-precision immersion/penetration probe (digital)
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                                                                                                  • Temperature probes
                                                                                                    testo 115i
                                                                                                      :
                                                                                                      0560 2115 03
                                                                                                    • Velocity Probe

                                                                                                    • Velocity Probe
                                                                                                      Hot wire probe (digital) with Bluetooth® including temperature and humidity sensor
                                                                                                      Hot wire probe (digital) with Bluetooth® including temperature and humidity sensor: for measurements in ventilation ducts – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH
                                                                                                        :
                                                                                                        0635 1571
                                                                                                      • Velocity Probe
                                                                                                        Hot wire probe (digital) including temperature and humidity sensor, wired
                                                                                                        Hot wire probe (digital) including temperature and humidity sensor, wired: for measurements in ventilation ducts – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH
                                                                                                          :
                                                                                                          0635 1572
                                                                                                        • Velocity Probe
                                                                                                          Hot wire probe head including temperature and humidity sensor
                                                                                                          Hot wire probe head including temperature and humidity sensor: for attachment to extendable telescope for air velocity probes with universal handle – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH
                                                                                                            :
                                                                                                            0635 1570
                                                                                                          • Velocity Probe
                                                                                                            Vane probe (Ø 16 mm, digital) with Bluetooth®, including temperature sensor
                                                                                                            Vane probe (Ø 16 mm, digital) with Bluetooth® including temperature sensor: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C
                                                                                                              :
                                                                                                              0635 9571
                                                                                                            • Velocity Probe
                                                                                                              Vane probe (Ø 16 mm, digital) including temperature sensor, wired
                                                                                                              Vane probe (Ø 16 mm, digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C
                                                                                                                :
                                                                                                                0635 9572
                                                                                                              • Velocity Probe
                                                                                                                16 mm vane probe head including temperature sensor
                                                                                                                16 mm vane probe head including temperature sensor; for attachment to extendable telescope for air velocity probes with universal handle – measuring range +0.6 to +50 m/s, -10 to +70 °C
                                                                                                                  :
                                                                                                                  0635 9570
                                                                                                                • Velocity Probe
                                                                                                                  Hot wire probe (digital) including temperature sensor, wired
                                                                                                                  Hot wire probe (digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range 0 to 30 m/s, -20 to +70 °C
                                                                                                                    :
                                                                                                                    0635 1032
                                                                                                                  • Velocity Probe
                                                                                                                    Vane probe (Ø 16 mm, digital) wired
                                                                                                                    Vane probe (Ø 16 mm, digital), wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s
                                                                                                                      :
                                                                                                                      0635 9532
                                                                                                                    • Velocity Probe
                                                                                                                      Fume cupboard probe (digital), wired
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                                                                                                                        :
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                                                                                                                      • Velocity Probe
                                                                                                                        High-precision vane probe (Ø 100 mm, digital) with Bluetooth® including temperature sensor
                                                                                                                        High-precision vane probe (Ø 100 mm, digital) with Bluetooth® including temperature sensor: for measurements at air outlets in cleanrooms and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C
                                                                                                                          :
                                                                                                                          0635 9371
                                                                                                                        • Velocity Probe
                                                                                                                          High-precision vane probe (Ø 100 mm, digital) including temperature sensor, wired
                                                                                                                          High-precision vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at air outlets in cleanrooms, as well as at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C
                                                                                                                            :
                                                                                                                            0635 9372
                                                                                                                          • Velocity Probe
                                                                                                                            High-precision 100 mm vane probe head including temperature sensor
                                                                                                                            High-precision 100 mm vane probe head including temperature sensor: for attachment to extendable telescope for air velocity probes with universal handle or to a universal Bluetooth® or cable handle – measuring range +0.1 to +15 m/s, -20 to +70 °C
                                                                                                                              :
                                                                                                                              0635 9370
                                                                                                                            • Velocity Probe
                                                                                                                              Vane probe (Ø 100 mm, digital) with Bluetooth® including temperature sensor
                                                                                                                              Vane probe (Ø 100 mm, digital) with Bluetooth® including temperature sensor: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C
                                                                                                                                :
                                                                                                                                0635 9431
                                                                                                                              • Velocity Probe
                                                                                                                                Vane probe (Ø 100 mm, digital) including temperature sensor, wired
                                                                                                                                Vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C
                                                                                                                                  :
                                                                                                                                  0635 9432
                                                                                                                                • Velocity Probe
                                                                                                                                  100 mm vane probe head
                                                                                                                                  100 mm vane probe head: for attachment to extendable telescope for air velocity probes with universal handle or to universal Bluetooth® or cable handle – measuring range +0.3 to +35 m/s, -20 to +70 °C
                                                                                                                                    :
                                                                                                                                    0635 9430
                                                                                                                                  • Velocity Probe
                                                                                                                                    testo 405i German Design Award
                                                                                                                                    testo 405i – thermal anemometer with smartphone operation
                                                                                                                                      :
                                                                                                                                      0560 1405
                                                                                                                                    • Velocity Probe
                                                                                                                                      Smart Probes VAC Set
                                                                                                                                      testo 410i – vane anemometer with smartphone operation
                                                                                                                                        :
                                                                                                                                        0560 1410
                                                                                                                                        $ 136.00
                                                                                                                                        1
                                                                                                                                      • Velocity Probe
                                                                                                                                        Thermische Strömungssonde (Hitzdraht) ~ 7,5 mm
                                                                                                                                        Hot wire probe (Ø 7.5 mm, digital), incl. temperature sensor, fixed cable: for measurement in ventilation ducts, at plate outlets, ventilation grilles – measuring range 0 to 20 m/s, -20 to +70 °C
                                                                                                                                          :
                                                                                                                                          0635 1026
                                                                                                                                          $ 739.00
                                                                                                                                          1
                                                                                                                                        • Velocity Probe
                                                                                                                                          Hot ball probe (Ø 3 mm) - for flow and temperature
                                                                                                                                          Hot ball probe (Ø 3 mm, digital), incl. temperature sensor, fixed cable: for measurement in non-directional air flows – measuring range 0 to 10 m/s, -20 to +70 °C
                                                                                                                                            :
                                                                                                                                            0635 1051
                                                                                                                                            $ 960.00
                                                                                                                                            1
                                                                                                                                          • Sets

                                                                                                                                          • Sets
                                                                                                                                            testo 440 Hot Wire Kit
                                                                                                                                            testo 440 Hot Wire Kit: for measuring air velocity, volume flow and temperature in ventilation ducts with a hot wire probe
                                                                                                                                              :
                                                                                                                                              0563 4400
                                                                                                                                            • Sets
                                                                                                                                              testo 440 16 mm Vane Kit
                                                                                                                                              testo 440 16 mm Vane Kit: for measuring air velocity and volume flow in ventilation ducts with a vane probe (Ø 16 mm)
                                                                                                                                                :
                                                                                                                                                0563 4401
                                                                                                                                              • Sets
                                                                                                                                                testo 440 100 mm Vane Kit with Bluetooth®
                                                                                                                                                testo 440 100 mm Vane Kit with Bluetooth®: for measuring air velocity, volume flow and temperature at air outlets
                                                                                                                                                  :
                                                                                                                                                  0563 4403
                                                                                                                                                • Sets
                                                                                                                                                  testo 440 Humidity Kit with Bluetooth®
                                                                                                                                                  testo 440 Humidity Kit with Bluetooth®: for measuring humidity and temperature in storage, refrigerated and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps using the humidity/temperature probe with Bluetooth
                                                                                                                                                    :
                                                                                                                                                    0563 4404
                                                                                                                                                  • Sets
                                                                                                                                                    testo 440 CO2 Kit with Bluetooth®
                                                                                                                                                    testo 440 CO₂ Kit with Bluetooth®: for measuring CO2 concentration, humidity and temperature in indoor areas and for evaluating the indoor air quality (IAQ) with a CO2 probe
                                                                                                                                                      :
                                                                                                                                                      0563 4405
                                                                                                                                                    • Sets
                                                                                                                                                      testo 440 Air Flow ComboKit 1 with Bluetooth®t 1 with Bluetooth
                                                                                                                                                      testo 440 Air Flow ComboKit 1 with Bluetooth®: for measuring air velocity, volume flow and temperature in ventilation ducts (with Ø 9 mm hot wire probe) and at air outlets (with Ø 100 mm vane probe)
                                                                                                                                                        :
                                                                                                                                                        0563 4406
                                                                                                                                                      • Sets
                                                                                                                                                        testo 440 Air Flow ComboKit 2 with Bluetooth®
                                                                                                                                                        testo 440 flow combo-kit 2 with Bluetooth®: for measuring flow, volume flow and temperature in ventilation ducts (with Ø 16 mm vane probe) and at air outlets (with Ø 100 mm vane probe)
                                                                                                                                                          :
                                                                                                                                                          0563 4407
                                                                                                                                                        • Sets
                                                                                                                                                          testo 440 Indoor Comfort ComboKit with Bluetooth®
                                                                                                                                                          testo 440 Indoor Comfort ComboKit with Bluetooth®: for evaluating the indoor air quality (CO2 concentration, temperature and humidity) with CO2 probe and for determining the degree of turbulence and draught risk in workplaces according to EN ISO 7730 / ASHRAE 55 (with turbulence probe)
                                                                                                                                                            :
                                                                                                                                                            0563 4408
                                                                                                                                                          • Accessories

                                                                                                                                                          • Accessories
                                                                                                                                                            testo BLUETOOTH ® -/IRDA printer
                                                                                                                                                            BLUETOOTH®-/IRDA printer with Bluetooth® and IrDA interface for printing out measurement data and graphs from compatible Testo measuring instruments or Testo Apps
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                                                                                                                                                              0554 0621
                                                                                                                                                              $ 339.15
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                                                                                                                                                            • Accessories
                                                                                                                                                              Measuring tripod for IAQ and comfort level measurements
                                                                                                                                                              Measuring tripod for IAQ and comfort level measurements, to ensure standard-compliant, secure positioning of measuring instrument and probes including transport bag
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                                                                                                                                                                0554 1591
                                                                                                                                                              • Accessories
                                                                                                                                                                Measuring tripod for flow measurements, for standard-compliant and secure positioning of probes
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                                                                                                                                                                  0554 1592
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                                                                                                                                                                  USB power supply including cable
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                                                                                                                                                                    0554 1105
                                                                                                                                                                  • Accessories
                                                                                                                                                                    Universal Bluetooth® handle for connecting probe heads
                                                                                                                                                                    Bluetooth® handle for connecting probe heads: transmits readings conveniently via Bluetooth
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                                                                                                                                                                      0554 1111
                                                                                                                                                                    • Accessories
                                                                                                                                                                      Universal cable handle for connecting probe heads
                                                                                                                                                                      Cable handle for connecting probe heads: transmits readings via cable
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                                                                                                                                                                        0554 2222
                                                                                                                                                                      • Accessories
                                                                                                                                                                        testovent 417 volume flow straightener set
                                                                                                                                                                        Flow straigthener set testovent 417 consisting of funnel set testovent 417 and flow straigthener testovent 417
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                                                                                                                                                                          0554 4173
                                                                                                                                                                        • Accessories
                                                                                                                                                                          testovent 417 funnel set
                                                                                                                                                                          The flow funnel kit is an optional kit for the testo 417, and can be used with the vane attachment of the testo 435. The flow funnel is ideal for measurements below 50 CFM. The funnel kit Includes an 8 inch round and 13 inch square funnel, ensuring proper measurements for a variety of ducts.
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                                                                                                                                                                            0563 4170
                                                                                                                                                                          • Accessories
                                                                                                                                                                            testovent 417 volume flow straightener
                                                                                                                                                                            Flow straightener testovent 417
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                                                                                                                                                                              0554 4172
                                                                                                                                                                            • Accessories
                                                                                                                                                                              Extendable telescope (up to 1 m in length) for flow probes with universal handle
                                                                                                                                                                              Extendable telescope (up to 1 m in length) for flow probes
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                                                                                                                                                                                0554 0960
                                                                                                                                                                              • Accessories
                                                                                                                                                                                Telescope extension (length 0.4 to 0.9 m) for flow probes with universal handle
                                                                                                                                                                                Telescope extension for flow probes, length 0.4 to 0.9 m
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                                                                                                                                                                                  0554 0990
                                                                                                                                                                                • Accessories
                                                                                                                                                                                  90° angle for the attachment of vane probes (Ø 100 mm) with universal handle
                                                                                                                                                                                  90° angle: for connecting vane probes (Ø 100 mm): for correct positioning at ceiling outlets
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                                                                                                                                                                                    0554 0991
                                                                                                                                                                                  • Accessories
                                                                                                                                                                                    Extendable telescope with ball head joint
                                                                                                                                                                                    Telescoping probe handle (up to 5.9 ft in length) including probe holder for flow probes with universal Bluetooth or cable handle.
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                                                                                                                                                                                      0430 0946
                                                                                                                                                                                    • Sensor heads

                                                                                                                                                                                    • Sensor heads
                                                                                                                                                                                      16 mm vane probe head including temperature sensor
                                                                                                                                                                                      16 mm vane probe head including temperature sensor; for attachment to extendable telescope for air velocity probes with universal handle – measuring range +0.6 to +50 m/s, -10 to +70 °C
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                                                                                                                                                                                        0635 9570
                                                                                                                                                                                      • Sensor heads
                                                                                                                                                                                        High-precision 100 mm vane probe head including temperature sensor
                                                                                                                                                                                        High-precision 100 mm vane probe head including temperature sensor: for attachment to extendable telescope for air velocity probes with universal handle or to a universal Bluetooth® or cable handle – measuring range +0.1 to +15 m/s, -20 to +70 °C
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                                                                                                                                                                                          0635 9370
                                                                                                                                                                                        • Sensor heads
                                                                                                                                                                                          100 mm vane probe head
                                                                                                                                                                                          100 mm vane probe head: for attachment to extendable telescope for air velocity probes with universal handle or to universal Bluetooth® or cable handle – measuring range +0.3 to +35 m/s, -20 to +70 °C
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                                                                                                                                                                                            0635 9430
                                                                                                                                                                                          • Sensor heads
                                                                                                                                                                                            Hot wire probe head including temperature and humidity sensor
                                                                                                                                                                                            Hot wire probe head including temperature and humidity sensor: for attachment to extendable telescope for air velocity probes with universal handle – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH
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                                                                                                                                                                                              0635 1570
                                                                                                                                                                                            • Sensor heads
                                                                                                                                                                                              Humidity/temperature probe head
                                                                                                                                                                                              Humidity/temperature probe head: for attachment to universal Bluetooth® or cable handle – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C
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                                                                                                                                                                                                0636 9730
                                                                                                                                                                                              • Sensor heads
                                                                                                                                                                                                High-precision humidity/temperature probe head: for attachment to a universal Bluetooth® or cable handle – accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)
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                                                                                                                                                                                                  0636 9770
                                                                                                                                                                                                • Sensor heads
                                                                                                                                                                                                  CO2 probe head including temperature and humidity sensor
                                                                                                                                                                                                  CO₂ probe head including temperature and humidity sensor: for attachment to universal Bluetooth® or cable handle – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH
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                                                                                                                                                                                                    0632 1550
                                                                                                                                                                                                  • Sensor heads
                                                                                                                                                                                                    CO probe head
                                                                                                                                                                                                    CO probe head: for attachment to universal Bluetooth® or cable handle – measuring range 0 to 500 ppm
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                                                                                                                                                                                                      0632 1270
                                                                                                                                                                                                    • Transport Case


                                                                                                                                                                                                      Convenience and maximum flexibility for duct and outlet measurements

                                                                                                                                                                                                      Use our large range of air velocity probes (please order probes that are not included in the kit separately) to carry out simple, convenient measurements even at locations that are difficult to access in ventilation ducts or at air outlets:

                                                                                                                                                                                                      You can even carry out easy measurements in particularly large ducts. This is because the extendable telescope on the hot wire and vane probe (Ø 16 mm) with universal handle can be further extended using the telescope extension – enabling you to attain a total length of 2 metres.

                                                                                                                                                                                                      Carry out measurements at air/ceiling outlets effortlessly and without using a ladder. Fit your vane probe (Ø 100 mm) with the telescope with 90° angle and, if necessary, with the telescope extension (both can be ordered separately).

                                                                                                                                                                                                      Greater freedom thanks to Bluetooth: the air velocity probes with Bluetooth have no inconvenient cable connection to the measuring instrument, and they transmit readings up to a distance of 20 m. Press the button on the probe to operate the measuring instrument – for example, to start and stop a series of measurements (timed mean calculation).

                                                                                                                                                                                                      Attach the testo 440 dP air velocity and IAQ measuring instrument to metal surfaces (e.g. ducts) easily using the practical magnets.

                                                                                                                                                                                                      Benefit from fast calculation of the volume flow: in the “volume flow” measurement menu of the multifunction measuring instrument, configure the dimensions and geometry of the duct cross-section – the measuring instrument shows you the volume flow straight away.
                                                                                                                                                                                                      Volumetric flow measurement in ventilation ducts with vane probe (Ø 16 mm) and testo 440

                                                                                                                                                                                                      Long-term monitoring of indoor air quality

                                                                                                                                                                                                      Poor indoor air quality due to excessive concentrations of CO2 can cause tiredness, lack of concentration and even illness. With its menu for recording readings, the testo 440 air velocity and IAQ measuring instrument is ideal for monitoring the indoor air quality. Enter the measurement time and the measuring cycle – and, for example, track the change in CO2 concentration or humidity and temperature values over the course of the day. Simply choose between probes with Bluetooth or fixed cable for CO2, CO or humidity (please order probes separately).
                                                                                                                                                                                                      Measure CO2 concentration for assessing indoor air quality with CO2 probe and testo 440

                                                                                                                                                                                                      Turbulence measurement in accordance with EN ISO 7730 / ASHRAE 55

                                                                                                                                                                                                      Determine the degree of turbulence and the draught risk in the workplace: draught restricts the comfort level and is the most common cause of complaints about the indoor climate. The turbulence probe (please order separately) measures air velocity and air temperature, and automatically calculates the draught risk and the degree of turbulence in accordance with EN ISO 7730/ASHRAE 55.
                                                                                                                                                                                                      For convenient measurements at varying heights, we recommend using our measuring tripod for comfort level measurement (please order separately). This makes it very easy to position turbulence probes in compliance with the standards.
                                                                                                                                                                                                      Determining the degree of turbulence with turbulence probe and testo 440

                                                                                                                                                                                                      Range of probes for cleanrooms and laboratories

                                                                                                                                                                                                      The testo 440 air velocity & IAQ measuring instrument is also ideal for a wide variety of applications in cleanrooms and laboratories in conjunction with the following probes:
                                                                                                                                                                                                      • High-precision flow measurement in fume cupboards with the fume cupboard probe
                                                                                                                                                                                                      • Thanks to the low start-up speed of 0.1 m/s, the high-precision vane probe (Ø 100 mm) is ideal for laminar flow measurements in cleanrooms. It is available as a variant with Bluetooth or with fixed cable
                                                                                                                                                                                                      • To measure the humidity in cleanrooms, we recommend the high-precision humidity/temperature probe (0636 9771 or 0636 9772). With an accuracy of ±(0.6 %RH + 0.7% of m.v.) (0 to 90 %RH), it also meets the requirements for humidity measurements in this particularly sensitive area
                                                                                                                                                                                                      • Use the high-precision digital Pt100 temperature probes, for example, for high-precision comparative measurements in calibration laboratories, temperature measurements in chemical laboratories or in the cosmetics industry as well as for determining the temperature distribution in refrigerators and conditioning cabinets
                                                                                                                                                                                                      Volumetric flow measurement in fume cupboards with fume cupboard probe and testo 440