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testo 440 Hot Wire Kit

0563 4400
  • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature in ventilation ducts
  • Convenient: integrated telescope that can be extended to 0.85 m, with scaling, makes it easy to carry out measurements
  • Reliable: absolute pressure compensation, internal data storage and USB port for data export
  • As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes
  • Kit for carrying out measurements in ventilation ducts: the testo 440 air velocity and IAQ measuring instrument and the hot wire probe (Ø 9 mm) including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!
    • SmartProbes-testo-440-overview-2000x1500.jpg

      A measuring instrument for all climate-related parameters

    • testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol
    • Hot wire probe (Ø 9 mm) with fixed cable (length 1.7 m) including temperature sensor, with telescope (can be extended to 0.85 m) and calibration protocol (0635 1032)
    • Basic case for testo 440 and 1 probe

    Comfort probes

  • Comfort probes
    Turbulence probe (digital), wired
    Turbulence probe (digital), wired: for determining the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55 – measuring range 0 to +5 m/s, 0 to +50 °C
      :
      0628 0152
    • Comfort probes
      Lux probe (digital) for measuring illuminance, wired
      Lux probe (digital), wired: for measuring illuminance in workplaces (e.g. offices, production areas) – measuring range 0 to 100,000 lux
        :
        0635 0551
      • Comfort probes
        CO2 probe (digital) with Bluetooth® including temperature and humidity sensor
        CO₂ probe (digital) with Bluetooth® including temperature and humidity sensor: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH
          :
          0632 1551
        • Comfort probes
          CO2 probe (digital) including temperature and humidity sensor, wired
          CO₂ probe (digital) including temperature and humidity sensor, wired: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH
            :
            0632 1552
          • Comfort probes
            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
              :
              0632 1550
            • Comfort probes
              CO probe (digital) with Bluetooth®
              CO probe (digital) with Bluetooth®: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm
                :
                0632 1271
              • Comfort probes
                CO probe (digital), wired
                CO probe (digital), wired: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm
                  :
                  0632 1272
                • Comfort probes
                  CO probe head
                  CO probe head: for attachment to universal Bluetooth® or cable handle – measuring range 0 to 500 ppm
                    :
                    0632 1270
                  • Comfort probes
                    Globe probe Ø 150mm
                    Globe thermometer (TC type K) for the measurement of radiant heat – measuring range 0 to + 120 °C
                      :
                      0602 0743
                    • Humidity probes

                    • Humidity probes
                      Humidity/temperature probe (digital) with Bluetooth®
                      Humidity/temperature probe (digital) with Bluetooth®: 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 9731
                      • Humidity probes
                        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
                        • Humidity probes
                          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
                              High-precision humidity/temperature probe (digital), wired: 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 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
                                  Robust humidity/temperature probe (digital) - for temperatures up to +180 °C, wired
                                  Robust humidity/temperature probe (digital) for temperatures up to +180 °C, wired: for measurements in industrial exhaust air, in bulk materials and in climatic test cabinets – accuracy ±2% RH (2.1 to 98% RH) / ±0.4 °C (0.1 to +50 °C), measuring range 0 to 100% RH / -20 to +180 °C
                                   
                                    :
                                    0636 9775
                                  • Humidity probes
                                    testo 605i
                                    testo 605i - thermohygrometer operated via smartphone
                                      :
                                      0560 2605 02
                                    • Pressure probes

                                      Temperature probes

                                    • Temperature probes
                                      testo 805i
                                      testo 805i – infrared thermometer with smartphone operation
                                        :
                                        0560 1805
                                      • Temperature probes
                                        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
                                        • Temperature probes
                                          Robust air probe with NTC temperature sensor
                                          Robust air probe (NTC temperature sensor) with a short response time, for measuring air temperature – measuring range -50 to +125 °C, accuracy ±0.2 °C (-25 to +80 °C)
                                            :
                                            0615 1712
                                          • Temperature probes
                                            Clamp probe with NTC temperature sensor for measurements on pipes (Ø 6-35 mm)
                                            Clamp probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 6-35 mm) – measuring range -40 to +125 °C
                                              :
                                              0615 5505
                                            • Temperature probes
                                              Robuster Luftfühler, TE Typ K
                                              Robust air temperature probe (TC type K) – measuring range: -60 to +400 °C
                                                :
                                                0602 1793
                                              • Temperature probes
                                                Fast-action surface probe with sprung thermocouple strip
                                                Fast-action surface probe (TC type K) – measuring range -60 to +300 °C, short-term up to +500 °C
                                                  :
                                                  0602 0393
                                                • Temperature probes
                                                  Fast-reaction paddle surface probe
                                                  Fast-reaction paddle surface probe (TC type K) - Measuring range: - 0 to +300°C
                                                    :
                                                    0602 0193
                                                  • Temperature probes
                                                    Efficient, waterproof surface probe with small measurement head
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                                                      :
                                                      0602 0693
                                                    • Temperature probes
                                                      Fast-action surface probe with sprung thermocouple strip
                                                      Fast-action, angled surface temperature probe (TC type K) for flat and uneven surfaces – measuring range: -60 to +300 °C
                                                        :
                                                        0602 0993
                                                      • Temperature probes
                                                        Magnetic probe (TC type K) - for surface temperatures
                                                        Surface temperature probe with magnet (TC type K), adhesive power 20 N – Measuring range -50 to +170°C
                                                          :
                                                          0602 4792
                                                        • Temperature probes
                                                          Magnetfühler, Haftkraft ca. 10 N, mit Haft-Magneten
                                                          Surface temperature probe with magnet (TC type K), adhesive power 10 N – Measuring range -50 to +400°C
                                                            :
                                                            0602 4892
                                                          • Temperature probes
                                                            Waterproof surface probe with widened measurement tip
                                                            Waterproof surface temperature probe with widened measuring tip (TC type K) for flat surfaces – measuring range -60 to +400 °C
                                                              :
                                                              0602 1993
                                                            • Temperature probes
                                                              Pipe wrap probe with velcro strip
                                                              Temperature probe with Velcro (TC Type K)
                                                                :
                                                                0628 0020
                                                              • Temperature probes
                                                                Pipe wrap probe for pipe diameter 5 to 65 mm
                                                                Temperature probe (TC type K) with clamping bracket for measurements on pipes with Ø 5-65 mm – Measuring range -60 to +130°C, briefly up to +280°C
                                                                  :
                                                                  0602 4592
                                                                • Temperature probes
                                                                  Clamp probe for measurements on pipes
                                                                  Clamp probe (TC type K) for temperature measurements on pipes with Ø 15-25 mm – Measuring range -50 to +100°C, briefly up to +130°C
                                                                    :
                                                                    0602 4692
                                                                  • Temperature probes
                                                                    Efficient and fast-action immersion probe, waterproof
                                                                    Flexible, fast-action immersion probe (TC type K) – measuring range: -60 to +1000 °C
                                                                      :
                                                                      0602 0593
                                                                    • Temperature probes
                                                                      Fast-action, waterproof immersion/penetration probe
                                                                      Fast-action immersion/penetration probe (TC type K) – measuring range: -60 to +800 °C
                                                                        :
                                                                        0602 2693
                                                                      • Temperature probes
                                                                        Tauch-Messspitze, biegsam, TE Typ K
                                                                        Immersion measuring tip with TC plug type K - for fast temperature measurements
                                                                          :
                                                                          0602 5792
                                                                        • Temperature probes
                                                                          Flexible immersion measuring tip (TC type K, class 3) - measuring range -200 to +40°C
                                                                            :
                                                                            0602 5793
                                                                          • Temperature probes
                                                                            Immersion measurement tip, flexible, for measurements in air
                                                                            Flexible immersion measuring tip (TC type K) - Measuring range: -40 to +1000°C
                                                                              :
                                                                              0602 5693
                                                                            • Temperature probes
                                                                              Waterproof immersion/penetration probe, TC Type K
                                                                              Waterproof immersion/penetration probe (TC type K) – measuring range -60 to +400 °C
                                                                                :
                                                                                0602 1293
                                                                              • Temperature probes
                                                                                Flexible, low-mass immersion measurement tip
                                                                                Exceptionally fast temperature probe (TC Type K)
                                                                                  :
                                                                                  0602 0493
                                                                                • Temperature probes
                                                                                  Wasserdichter Lebensmittelfühler aus Edelstahl (IP65)
                                                                                  Waterproof stainless steel food probe (TC type K) - measuring range: -60 to +400°C
                                                                                    :
                                                                                    0602 2292
                                                                                  • Temperature probes
                                                                                    Thermocouple with TC adapter, flexible, 800 mm long
                                                                                    Flexible thermoelectric couple (TC type K, glass fibre) – Measuring range: -50 to +400°C
                                                                                      :
                                                                                      0602 0644
                                                                                    • Temperature probes
                                                                                      Thermocouple with TC adapter, flexible, length 1500 mm
                                                                                      Flexible thermoelectric couple (TC type K, glass fibre) – measuring range -50 to +400°C
                                                                                        :
                                                                                        0602 0645
                                                                                      • Temperature probes
                                                                                        Thermocouple with TC adapter, flexible, 1500 mm long, PTFE
                                                                                        Flexible thermoelectric couple (TC type K, PTFE) – measuring range -50 to +250°C
                                                                                          :
                                                                                          0602 0646
                                                                                        • Temperature probes
                                                                                          Flexible temperature probe (digital)
                                                                                          Flexible temperature probe (digital) with Pt100 temperature sensor: for temperature measurements in locations that are difficult to access and in liquids – measuring range -100 to +260 °C
                                                                                            :
                                                                                            0618 0071
                                                                                          • Temperature probes
                                                                                            Robust, fast-action air probe (digital)
                                                                                            Robust, fast-action air probe (digital)
                                                                                              :
                                                                                              0618 0072
                                                                                            • 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
                                                                                                :
                                                                                                0618 0073
                                                                                              • Temperature probes
                                                                                                Glass-coated laboratory probe (digital)
                                                                                                Glass-coated laboratory probe (Pt100 temperature sensor, digital) for temperature measurements in aggressive media – measuring range -50 to +400 °C
                                                                                                  :
                                                                                                  0618 7072
                                                                                                • Temperature probes
                                                                                                  High-precision immersion/penetration probe (digital)
                                                                                                  High-precision immersion/penetration probe (Pt100 temperature sensor, digital) for temperature measurements in liquids and pastes – measuring range -80 to +300 °C, accuracy up to ±0.05 °C
                                                                                                    :
                                                                                                    0618 0275
                                                                                                  • Temperature probes
                                                                                                    Pipe wrap probe with NTC temperature sensor for measurements on pipes (Ø 5-65 mm)
                                                                                                    Pipe wrap probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 5-65 mm) – measuring range -60 to +130 °C
                                                                                                      :
                                                                                                      0615 5605
                                                                                                    • Temperature probes
                                                                                                      testo 115i
                                                                                                      testo 115i - Clamp thermometer operated via smartphone
                                                                                                        :
                                                                                                        0560 2115 02
                                                                                                      • Velocity

                                                                                                      • Velocity
                                                                                                        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
                                                                                                          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
                                                                                                            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
                                                                                                              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
                                                                                                                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
                                                                                                                  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
                                                                                                                    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
                                                                                                                      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
                                                                                                                        Fume cupboard probe (digital), wired
                                                                                                                        Fume cupboard probe (digital), wired: for measuring inflow speed and exhaust air volume flow in fume cupboards according to DIN EN 14175-3/-4 – measuring range 0 to 5 m/s, 0 to +50 °C
                                                                                                                          :
                                                                                                                          0635 1052
                                                                                                                        • Velocity
                                                                                                                          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
                                                                                                                            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
                                                                                                                              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
                                                                                                                                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
                                                                                                                                  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
                                                                                                                                    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
                                                                                                                                      testo 405i German Design Award
                                                                                                                                      testo 405i – thermal anemometer with smartphone operation
                                                                                                                                        :
                                                                                                                                        0560 1405
                                                                                                                                      • Velocity
                                                                                                                                        Smart Probes VAC Set
                                                                                                                                        testo 410i – vane anemometer with smartphone operation
                                                                                                                                          :
                                                                                                                                          0560 1410
                                                                                                                                        • Velocity
                                                                                                                                          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
                                                                                                                                          • Velocity
                                                                                                                                            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
                                                                                                                                            • 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 Lux Kit
                                                                                                                                                  testo 440 Lux Kit for measuring the illuminance in workplaces with a lux probe
                                                                                                                                                    :
                                                                                                                                                    0563 4402
                                                                                                                                                  • 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
                                                                                                                                                              • Sets
                                                                                                                                                                testo 440 Laboratory kit
                                                                                                                                                                testo 440 laboratory kit: for measuring the temperature in aggressive media with Pt100 laboratory probe
                                                                                                                                                                  :
                                                                                                                                                                  0563 4412
                                                                                                                                                                • Accessories

                                                                                                                                                                  Accessories for measuring instrument

                                                                                                                                                                • Accessories for measuring instrument
                                                                                                                                                                  USB mains unit incl. cable
                                                                                                                                                                    :
                                                                                                                                                                    0554 1105
                                                                                                                                                                  • Certificates

                                                                                                                                                                    Transport and Protection


                                                                                                                                                                    Convenience and maximum flexibility for duct and outlet measurements

                                                                                                                                                                    With our large range of air velocity probes (please order separately), you can carry out simple and convenient measurements even at locations that are difficult to access in ventilation ducts or at air outlets:
                                                                                                                                                                    you will even find it easy to carry out 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 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