Air velocity and IAQ meters

Testo - 440-440dp

Get all measuring tasks on air conditioning and ventilation systems reliably under control
Accurate and reliable in the ductwork and at the air outlet
Measurement of the degree of turbulence according to EN ISO 7730 / ASHRAE 55

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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.

Models	440	440 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 Color	Black/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
Autonomy	12 h (typically vane measurement)	12 h (typically vane measurement)
Interfaces	BLUETOOTH®; USB	BLUETOOTH®; USB
Storage temperature	-4 to 122 °F	-4 to 122 °F