testo 440 dP – complete measurement kit for ventilation

Complete measurement set for ventilation measurements with the multi-instrument testo 440 dP

  • 100 mm diameter impeller sensor (Bluetooth)
  • 7.5 mm diameter hot wire sensor (fixed cable and telescope)
  • Set of nozzles for measuring volume flow rates
  • Pitot tube (Prandtl tube)

 23 950:-

Delivery time: 5-10 working days

Delivery time: 5-10 working days

testo 440 – complete measuring kit for ventilation measurements

This measurement set includes the testo 440 dP ventilation and indoor climate meter. It can be connected to a wide range of digital sensors, testo SmartProbes and many other temperature sensors. In addition to the features of the testo 440, this instrument has an integrated differential pressure sensor. Thanks to it, you can also perform measurements over filters and use Pitot tubes (Prandtl tubes). The instrument has clearly structured measurement menus for duct/vent volume flow, k-factor, turbulence degree, cooling/heating load, moisture damage risk indication and logging function. These menus allow you to complete measurement tasks faster, more efficiently and more reliably. Reports can be exported as Excel files via the USB interface or printed on site.

This is a handy kit for measuring air speed, air flow and air temperature in ventilation ducts and at air vents. Instruments and sensors are extremely easy to use and very handy for adjusting ventilation systems. The intelligent calibration concept also means that you keep the handle and the instrument. Just detach the sensor part and send it to us when it is time for calibration.

Included in delivery

  • The testo 440dP ventilation and indoor climate meter
  • Hot-wire sensor (ø 7.5 mm) with fixed cable, incl. antenna. temperature sensor
  • Vane sensor (ø 100 mm) with Bluetooth, inc. temperature sensor
  • Measuring nozzle for volume flow measurement
  • Pitot tube (prandtl tube)
  • Silicone hose 5 m, inner diameter 4 mm, outer diameter 7 mm
  • Measuring hook for ventilation devices (stainless steel)
  • Calibration certificate for differential pressure: 10 points in the measuring range 0 … 500 Pa
  • Calibration certificate for hot-wire/hot-body anemometer: 1/2/3/5/8/10 m/s
  • Calibration certificate for vanes with diam. 100 mm: 1/2/3/5/8/10 m/s
  • Combi bag for testo 440 and multiple sensors


PROBESSee separate info on probes
INSTRUMENTThe data below refer to the instrument only
Measurement range-40 … 150 °C
Accuracy (±1 digit)±0.4 °C (-40 … -25.1 °C)
±0.2 °C (-25 … +74.9 °C)
±0.4 °C (+75 … +99.9 °C)
±0.5% of mv.. (rem. measuring range)
Resolution0,1 °C
Measurement range-200 … +1 370 °C
Accuracy (±1 digit)±(0.3 °C + 0.1 % of mv.)
Resolution0,1 °C
TEMPERATURE Pt100 (with suitable sensor)
Measurement rangeSee probe data
Accuracy (±1 digit)See probe data
ResolutionSee probe data
Measurement range-150 … +150 hPa
Accuracy (±1 digit)±0.05 hPa (0 … +1.00 hPa)

±0.2 hPa + 1.5% of mv. (rem. measuring range)
Resolution0,01 hPa
TE type K1
NTC TUC / digital sensor with cable1
Bluetooth sensor1 digital Bluetooth sensor or testo SmartProbe
Operating temperature-20 … +50 °C
Storage temperature-20 … +50 °C
Battery type3 AA batteries
Battery life12 hours (typical measurement)
Weight250 g
Size154 x 65 x 32 mm

Digital comfort level probes

Digital air velocity probes

Digital moisture probes

NTC probes with TUC connector

Thermocouple probes type K

Pitot tubes (prandtl tubes)

Digital CO probes

Digital temperature probes

Datablad testo 440

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