TESTO 440dP Air Velocity Meter

Temperature - NTC

Measuring range: -40 to +150 °C

Accuracy

±0.4 °C (-40 to -25.1 °C)

±0.4 °C (+75 to +99.9 °C)

±0.5 % of mv (Remaining Range)

±0.3 °C (-25 to +74.9 °C)

Resolution: 0.1 °C

Temperature - TC Type K (NiCr-Ni)

Measuring range: -200 to +1370 °C

Accuracy: ±(0.3 °C + 0.3 % of mv)

Resolution: 0.1 °C

Differential pressure (internal sensor) - Piezoresistive

Measuring range: -150 to +150 hPa

Accuracy: ±0.05 hPa (0 to 1.00 hPa) (1.01 to +150 hPa)

±0.2 hPa + 1.5 % of mv

Resolution: 0.01 hPa

General technical data

Weight: 250 g

Dimensions: 154 x 65 x 32 mm

Operating temperature: -20 to +50 °C

Connectable probes: 1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x differential pressure (internal), 1 x Temperature TC Type K

Battery type: 3 AA mignon 1.5 V

Battery life: 12 h (typically vane measurement)

Interface: Bluetooth®; USB

Storage temperature: -20 to +50 °C

Air velocity & IAQ measuring instrument with integrated differential pressure sensor, connection hose, 3 x AA batteries, USB cable and calibration protocol.

Datasheet