100 mm vane: a 0.3 to 20 m/s range that gives stable readings at diffusers and in ducts.

Digital 4 inch vane anemometer with App connection
100 mm vane: a 0.3 to 20 m/s range that gives stable readings at diffusers and in ducts.

Product overview
The Testo 417 is a digital vane anemometer with a 100 mm vane and a 0.3 to 20 m/s velocity range. It measures air velocity, volume flow and temperature together and passes the data to the app for on-site documentation, making it suitable for HVAC commissioning and ventilation checks.
Key capabilities
testo 417
Velocity, volume flow and temperature in one: captures all three values in a single pass.
App connectivity: measurement data can be recorded and reported through the app on site.
Technical specifications
11 Technical specifications
- Velocity
- 0.3-20 m/s, accuracy +/- (0.1 m/s + 1.5 % of mv)
- Temperature
- 0...+50 C
- volume flow up to
- 99,999 m3/h
- Equipment
- 100 mm vane
- Protection class
- IP10
- Weight
- 243 g
- 3x AA,
- 50 h
- Vane diameter
- 100 mm
- Velocity range
- 0.3 to 20 m/s
- Parameters
- air velocity, volume flow, temperature
- Connectivity
- app connection
testo 417
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100 mm vane: a 0.3 to 20 m/s range that gives stable readings at diffusers and in ducts.


