testo 440 dP – thermal comfort measurement kit

Thermal comfort measurement kit - measurement of operational temperature and draught/turbulence

  • Display airflow in l/s or m3/h
  • Integrated differential pressure sensor
  • Clearly structured measurement menus
  • Report function

 30 590:-

Delivery time: 5-10 working days

Delivery time: 5-10 working days

Thermal comfort measurement kit

This measurement set includes the testo 440 dP airflow and IAQ 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 thermal comfort. By measuring the operational (or perceived) temperature and the degree of draught/turbulence, you can determine whether the indoor climate complies with current regulations.

In addition to the instrument, the following parts are included in the measurement kit:

  • Fixed cable pulley, incl.. temperature sensor
  • Fixed cable globe sensor for radiant heating
  • Tripod
  • 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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testo 440 dP – indoor climate measurement kit

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  • Display airflow in l/s or m3/h
  • Integrated differential pressure sensor
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