testo 400 set Air flow measurement with 16 mm vane probe

Ideal kit for IAQ professionals, focused on air flow measurement. You will receive the testo 400 air flow meter with intuitive measurement menus, one impeller probe (Ø 16 mm), one impeller probe (Ø 100 mm) and one temperature/degree probe highly accurate humidity – all three can be attached to a Bluetooth handle^®. For measurements at overhead air outlets, simply combine the 100 mm vane probe with a teletube (extendable up to 1.0 m) and a 90° connection angle.

Technical specifications of testo 400 air flow meter

testo 400 – multi-function IAQ measuring instrument (0560 0400)

Temperature – NTC
Measuring range	-40 to +150 °C
Accuracy	±0.2 °C ±1 digit (-25 to +74.9 °C) ±0.4 °C ±1 digit (-40 to -25.1 °C) ±0.4 °C ±1 digit (+75 to +99.9 °C) ±0.5 % measuring value ±1 digit (Remaining measuring range)
Resolution	0.1 °C

Temperature – NTC

Measuring range

-40 to +150 °C

Accuracy

±0.2 °C ±1 digit (-25 to +74.9 °C)

±0.4 °C ±1 digit (-40 to -25.1 °C)

±0.4 °C ±1 digit (+75 to +99.9 °C)

±0.5 % measuring value ±1 digit (Remaining measuring range)

Resolution

0.1 °C

Temperature – TC Type K (NiCr-Ni)
Measuring range	-200 to +1370 °C
Accuracy	±(0.3 °C + 0.1 % measured value) ±1 digit
Resolution	0.1 °C

Differential pressure (internal sensor) – Piezoresistive
Measuring range	0 to +200 hPa
Accuracy	±(0.3 Pa +1 % measured value) ±1 digit (0 to 25 hPa) ±(0.1 hPa +1.5 % measured value) ±1 digit (25.001 to 200 hPa)
Resolution	0.001 hPa

Differential pressure (internal sensor) – Piezoresistive

Measuring range

0 to +200 hPa

Accuracy

±(0.3 Pa +1 % measured value) ±1 digit (0 to 25 hPa)

±(0.1 hPa +1.5 % measured value) ±1 digit (25.001 to 200 hPa)

Resolution

0.001 hPa

* TUC connection (Testo Universal Connector): For connecting fixed cable digital probes and NTC probes.

Vane probe (Ø 16 mm, digital) – Bluetooth, including temperature sensor (0635 9571)

Temperature – NTC
Measuring range	-10 to +70 °C
Accuracy	±1.8 °C
Resolution	0.1 °C

Air flow velocity/flow
Measuring range	0.6 to 50 m/s
Accuracy	±(0.2 m/s + 1% measured value) (0.6 to +40 m/s) ±(0.2 m/s + 2% measured value) (40.1 to 50 m/s)
Resolution	0.1 m/s

Air flow velocity/flow

Measuring range

0.6 to 50 m/s

Accuracy

±(0.2 m/s + 1% measured value) (0.6 to +40 m/s)

±(0.2 m/s + 2% measured value) (40.1 to 50 m/s)

Resolution

0.1 m/s

Vane probe 100 mm (0635 9430)

Temperature – NTC
Measuring range	-20 to +70 °C
Accuracy	±0.5 °C
Resolution	0.1 °C

Air flow velocity/flow
Measuring range	0.3 to 35 m/s
Accuracy	±(0.1 m/s + 1.5% measured value) (0.3 to 20 m/s) ±(0.2 ms t1 1.5% measured value) (20.01 t2 35 m/s)
Resolution	0.01 m/s

Air flow velocity/flow

Measuring range

0.3 to 35 m/s

Accuracy

±(0.1 m/s + 1.5% measured value) (0.3 to 20 m/s)

±(0.2 ms t1 1.5% measured value) (20.01 t2 35 m/s)

Resolution

0.01 m/s

High precision temperature/humidity probe (0636 9770)

Temperature – NTC

Measuring range

-20 to +70 °C

Accuracy

±0.3 °C (+15 to +30 °C)

±0.5 °C (Remaining range)

Resolution

0.1 °C

Humidity – Capacitance
Measuring range	0 to 100 %rh
Accuracy	±(0.6 %rh + 0.7 % measured value) (0 to 90 %rh) ±(1.0 %rh + 0.7 % measured value) (90 to 100 %rh) ±0.03 %RH/K (k=1) long-term stability: ±1 %RH / year
Resolution	0.01 %rh

Humidity – Capacitance

Measuring range

0 to 100 %rh

Accuracy

±(0.6 %rh + 0.7 % measured value) (0 to 90 %rh)

±(1.0 %rh + 0.7 % measured value) (90 to 100 %rh)

±0.03 %RH/K (k=1)

long-term stability: ±1 %RH / year

Resolution

0.01 %rh