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    Turbulence probe (digital) - wired

    0628 0152
  1. Intuitive: clearly structured measurement menu for determining the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55
  2. Precise: compact probe for measuring air velocity and air temperature – high-precision, even at low air velocities
  3. Convenient: optional measuring tripod to ensure standard-compliant positioning of probes
  4. Intelligent calibration concept
  5. For determining the degree of turbulence and draught risk at workplaces: use the turbulence probe (with the compatible measuring instrument) to measure air velocity and air temperature.
    Use the turbulence probe with the compatible testo multifunction measuring instrument (please order separately) to measure air velocity and air temperature. Calculate the degree of turbulence and draught risk at the same time, in accordance with EN ISO 7730 / ASHRAE 55.

     

    Turbulence probe – features

    Use the fixed cable to connect the turbulence probe to the measuring instrument (please order separately). The clearly structured measurement menu for degree of turbulence makes it intuitive to operate. Air velocity and draught risk are therefore determined with reliability according to EN ISO 7730 / ASHRAE 55. To ensure accurate measurement results, air density compensation is carried out via the integrated absolute pressure measurement.
     
    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.

     

    Intelligent calibration concept

    You will get exceptionally accurate measurement results with the digital probe, because the measuring instrument makes measurement uncertainty a thing of the past. You only need to send the probe in for calibration – so the measuring instrument remains in continuous use.

     

    Areas of application for the turbulence probe

    Draught restricts the comfort level and is the most common cause of complaints about the indoor climate. The probe is ideal for determining the degree of turbulence and draught risk in the workplace. Degree of turbulence corresponds to the extent of fluctuations in air velocity over time. It is needed to calculate the draught risk.
     
     

    Turbulence probe with fixed cable (cable length 1.6 m) and calibration protocol.

  6. testo 440 Air velocity and IAQ measuring instrument
    testo 440 - Air velocity and IAQ measuring instrument
      :
      0560 4401
      £ 305.00 £ 366.00
      1
    • testo 440 100 mm Vane Kit with Bluetooth®
      testo 440 100 mm Vane Kit with Bluetooth®
        :
        0563 4403
        £ 689.00 £ 826.80
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      • testo 440 16 mm Vane Kit
        testo 440 16 mm Vane Kit
          :
          0563 4401
          £ 529.00 £ 634.80
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        • testo 440 Air Flow ComboKit 1 with Bluetooth®t 1 with Bluetooth
          testo 440 Air Flow ComboKit 1 with Bluetooth®
            :
            0563 4406
            £ 899.00 £ 1,078.80
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          • testo 440 Air Flow ComboKit 2 with Bluetooth®
            testo 440 Air Flow ComboKit 2 with Bluetooth®
              :
              0563 4407
              £ 959.00 £ 1,150.80
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            • testo 440 CO2 Kit with Bluetooth®
              testo 440 CO₂ Kit with Bluetooth®
                :
                0563 4405
                £ 739.00 £ 886.80
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              • testo 440 Hot Wire Kit
                testo 440 Hot Wire Kit
                  :
                  0563 4400
                  £ 489.00 £ 586.80
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                • testo 440 Humidity Kit with Bluetooth®
                  testo 440 Humidity Kit with Bluetooth®
                    :
                    0563 4404
                    £ 436.00 £ 523.20
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                  • testo 440 Indoor Comfort ComboKit with Bluetooth®
                    testo 440 Indoor Comfort ComboKit with Bluetooth®
                      :
                      0563 4408
                      £ 1,645.00 £ 1,974.00
                      1
                    • testo 440 Lux Kit
                      testo 440 Lux Kit
                        :
                        0563 4402
                        £ 579.00 £ 694.80
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                      • testo 440 dP Air velocity and IAQ measuring instrument including differential pressure sensor
                        testo 440 dP - Air velocity and IAQ measuring instrument including differential pressure sensor
                         
                          :
                          0560 4402
                          £ 399.00 £ 478.80
                          1
                        • testo 440 Delta P Air Flow ComboKit 1 with Bluetooth®
                          testo 440 delta P Air Flow ComboKit 1 with Bluetooth®
                            :
                            0563 4409
                            £ 1,479.00 £ 1,774.80
                            1
                          • testo 440 Delta P Air Flow ComboKit 2 with Bluetooth®
                            testo 440 delta P Air Flow ComboKit 2 with Bluetooth®
                              :
                              0563 4410
                              £ 1,529.00 £ 1,834.80
                              1
                            • testo 440 Laboratory kit
                              testo 440 laboratory kit
                                :
                                0563 4412
                                £ 509.00 £ 610.80
                                1
                              • testo 400 Universal IAQ instrument
                                testo 400 - Universal IAQ instrument
                                  :
                                  0560 0400
                                  £ 1,339.00 £ 1,606.80
                                  1
                                • testo 400 IAQ and comfort kit with tripod
                                  testo 400 IAQ and comfort kit with tripod
                                    :
                                    0563 0401
                                    £ 3,465.00 £ 4,158.00
                                    1
                                  • testo 400 air flow kit with 16 mm vane probe
                                    testo 400 air flow kit with 16 mm vane probe
                                      :
                                      0563 0400 72
                                      £ 2,872.00 £ 3,446.40
                                      1
                                    • testo 400 air flow kit with hot wire probe
                                      testo 400 air flow kit with hot wire probe
                                        :
                                        0563 0400 71
                                        £ 2,905.00 £ 3,486.00
                                        1
                                      • General technical data

                                        Storage temperature
                                        -20 to +60 °C
                                        Weight
                                        250 g
                                        Dimensions
                                        400 x 90 x 90 mm
                                        Operating temperature
                                        0 to +50 °C
                                        Cable length
                                        1.4 m
                                        Probe head diameter
                                        820 mm
                                        Product colour
                                        black/orange
                                        Standards
                                        EN ISO 7730 / ASHRAE 55

                                        Temperature - NTC

                                        Measuring range
                                        0 to +50 °C
                                        Accuracy
                                        ±0.5 °C
                                        Resolution
                                        0.1 °C

                                        Absolute Pressure

                                        Measuring range
                                        +700 to +1100 hPa
                                        Accuracy
                                        ±3.0 hPa
                                        Resolution
                                        0.1 hPa