Datasheet

testo 440
Ordering data for testo440
Technical data
testo440
testo440 testo440 dP
Air velocity & IAQ measuring instrument, 3 x AA
batteries, USB cable and calibration protocol.
Air velocity & IAQ measuring instrument
with integrated differential pressure
sensor, connection hose, 3 x AA
batteries, USB cable and calibration
protocol.
Order no. 0560 4401 Order no. 0560 4402
testo440 testo440 dP
Temperature (NTC)
Measuring range -40 to +150°C
Accuracy (±1 digit)
±0.4°C (-40 to -25.1°C)
±0.3°C (-25 to +74.9°C)
±
0.4°C (+75 to +99.9°C)
±0.5% of m.v. (remaining meas. range)
Resolution 0.1°C
Temperature (TC)
Measuring range -200 to +1370°C
Accuracy (±1 digit)
±
(0.3°C + 0.3% of m.v.)
Resolution 0.1°C
Dierential
pressure
Measuring range
–
-150 to +150hPa
Accuracy (±1 digit) ±0.05 hPa
(0 to +1.00 hPa)
±0.2hPa + 1.5% of m.v.
(+1.01 ... +150 hPa)
Resolution 0.01hPa
Probe connections
TC type K 1x
NTC TUC / digital
probe with cable
1x
Bluetooth probe 1x digital Bluetooth probe
or testo Smart Probe
Differential pressure – +
Technical data
Operating temperature -20 to +50°C
Storage temperature -20 to +50°C
Battery type 3 x AA batteries
Battery life 12 h (typically vane measurement)
Weight 250 g
Dimensions 154 x 65 x 32 mm
The wired digital probes and the NTC probes
of the testo 440 all have the practical
TUC connection (Testo Universal Connector).