Classification
Manufacturer
EClass
not containing the term:
Testo SE & CO KGaA 

Hot-wire anemometer testo 425

Hot-wire anemometer for simple, fast, and precise flow and temperature measurement as well as volume flow calculation. Measurement data can be transmitted to smartphones or tablets via Bluetooth®. The connection to the free testo Smart App enables configuration of the device as well as display, storage, and documentation of measurements.

  • Cable-connected, extendable telescopic probe up to 820 mm
  • Time and point averaging
  • Quick in-app configuration, graphic history, second screen, and measurement data memory in the testo Smart App
  • Compact design with sturdy housing
  • Hold function
  • Display of min./max. value
  • Accuracy of flow speed: ±0.03 m/s + 4 % of measured value (0.01 to 20 m/s), ±0.5 m/s + 5 % of measured value (20.01 to 30 m/s)


Scope of supply: Hot-wire anemometer with telescopic probe, transport bag, calibration protocol, batteries
Temperature:-20 ... 70 °C
Resolution temperature:0.1 °C
Accuracy temperature:±0.5 °C
Sensor (ØxL):7.5 x 180 mm
Dimensions (WxDxH):60 x 135 x 28 mm
Weight:268 g
Battery/rechargeable battery:3 x AA
Hot-wire anemometer testo 425


Hot-wire anemometer testo 425
TypeFlow speedResolution flow speed
m/s
PKCat. No. 
testo 4250.01 ... 30 m/s0.0114687947