Vane Anemometer
Product Details:
The compact testo 417 anemometer with built-in flow/temperature vane Ø 100 mm to measure flow speed, volume flow and temperature. Volume flow is shown directly in the display. Accurate volume flow calculation thanks to easy input of duct area. In addition, it is easy to switch to the current temperature reading. Current readings can be frozen in the display using the Hold function.
Features:

•  Direction of flow recognition
• Temperature, flow and volume flow measurement
• Multi-point and timed mean calculation
• Max/min values
  
• Hold button to freeze readings
• Display light