Order Code: 0563 4200

testo 420 set
testo 420 volume flow hood, with measuring instrument, body, 610 x 610 mm flow hood,
5 x tension rods, USB cable, batteries and trolley, incl. calibration protocol

Feature
- Flow straightener for more precise measurement at swirl
- Removable and tiltable measuring instrument with a large display
- App integration via Bluetooth for fast and easy monitoring and reporting on site


Volume flow
Measuring range: 50 to 4000 m³/h
Accuracy ±1 digit: ±3 % of m.v. +12 m³/h at +22 °C, 1013 hPa (85 to 3500 m³/h)
Resolution: 1 m³/h


NTC
Measuring range: -20 to +60 °C
Accuracy ±1 digit: ±0.5 °C (0 to +60 °C)
±0.8 °C (-20 to 0 °C)
Resolution: 0.1 °C


Capacitive humidity sensor
Measuring range: 0 to 100 %RH
Accuracy ±1 digit: ±1.8 %RH +3 % of m.v. at +25 °C (5 to 80 %RH)
Resolution: 0.1 %RH


Differential pressure sensor
Measuring range: -120 to +120 Pa
Accuracy ±1 digit: ±2 % of m.v. +0.5 Pa at +22 °C, 1013 hPa
Resolution: 0.001 Pa


Absolute pressure probe
Measuring range: +700 to +1100 hPa
Accuracy ±1 digit: ±3 hPa
Resolution: 0.1 hPa

Operating temperature: -5 to +50 °C
Standard hood: 610 x 610 mm
Battery life: 40 h (Zeroing interval 10 seconds, display illumination off, Bluetooth off)