• New
    Air velocity and IAQ meters

Air velocity and IAQ meters

  • Accurate and reliable in the ductwork and at the air outlet
  • Accurate and reliable in the ductwork and at the air outlet
  • Measurement of the degree of turbulence according to EN ISO 7730 / ASHRAE 55

View Quote

Can we help you?

The testo 440 air velocity and IAQ meter combines all the benefits of a compact handheld device with intuitive measurement menus and a comprehensive selection of air velocity & IAQ probes


TESTO 440 - air velocity & IAQ meter

testo 440 dP - air velocity & IAQ meter incl. differential pressure


This means you have all measuring tasks on air conditioning and ventilation systems reliably under control. You can connect the testo 440 to a large selection of digital probes, the testo Smart Probes, or even numerous Testo temperature probes, allowing for numerous configurations to meet your needs. The clearly structured menus for measuring volume flow in ducts and at outlets, cooling/heating load, K-factor, turbulence, mold indication and even a data logging mode are stored on the instrument 

for additional convenience.  These menus enable you to accomplish the relevant measuring task more quickly, more efficiently and more reliably than ever before. Reports can also be exported as excel files via the USB interface or printed out directly on site.

The testo 440 air velocity & IAQ meter is available in two versions. The standard testo 440 and the testo 440 dP model version, which includes an integrated differential pressure sensor. This makes measurements at filters as well as Pitot tube and K-factor measurements possible.


Benefits

  • Intuitive - Clearly structured measurement menus in the device for the most important applications
  • Wireless - Bluetooth probes for more comfort during measurements and optimal storage in your carrying case
  • Space-saving - One universal handle for all probes
  • Clear - Parallel display of 3 measured values, configuration and results
  • Reliable - Internal memory for up to 7500 measurement protocols, USB interface for data export and optional printout of measured values


THE TESTO 440 PROBE SYSTEM



Ordering Data

440 - Air velocity & IAQ meter, 3 x AA batteries, USB cable and calibration protocol.

440 dP - Air velocity & IAQ meter with integrated differential pressure sensor, connection hose, 3 x AA batteries, USB cable and calibration protocol.  




Models440440 dP
Temperature - NTC
Measuring range
-40.0 to 302.0 °F
-40.0 to 302.0 °F
Accuracy (±1 digit)

±1 °F (-40 to -13.2 °F) 

±1 °F (-40 to -13.2 °F) 

±0.7 °F (167 to 211.8 °F) 

±0.5% of m.v. (remaining meas. range)

±1 °F (-40 to -13.2 °F) 

±1 °F (-40 to -13.2 °F) 

±0.7 °F (167 to 211.8 °F) 

±0.5% of m.v. (remaining meas. range)

Resolution
0,1 °F
0,1 °F
Temperature (TC)
Measuring range
-328 to 2498 °F
-328 to 2498 °F
Accuracy (±1 digit)
±(0,3 °C + 0,3 % v.m.)
±(0,3 °C + 0,3 % v.m.)
Resolution
0,1 °F
0,1 °F
Differential Pressure
Measuring range
N/A
-60 to +60 InH2O
Accuracy (±1 digit)
N/A

±0.02 InH₂O (0 to 0.40 InH₂O)

±0.1 InH₂O + 1.5% m.v.

(0.40 to +60 InH₂O)

Resolution
N/A
0,01 hPa
Technical data
Poids
8.8 oz
8.8 oz
Dimensions
6.1 x 2.6 x 1.3 in.
6.1 x 2.6 x 1.3 in.
Operating temperature
-4 to 122 °F
-4 to 122 °F
Product ColorBlack/Orange
Black/Orange
Sondes raccordables
1x digital Bluetooth probe or testo Smart Probe
1x digital Bluetooth probe or testo Smart Probe
Battery type
3 x AA batteries
3 x AA batteries
Autonomy12 h (typically vane measurement)
12 h (typically vane measurement)
Interfaces
BLUETOOTH®; USB
BLUETOOTH®; USB
Storage temperature
-4 to 122 °F-4 to 122 °F