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Hot-wire anemometer testo 425

Product information "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

Accuracy temperature: ±0.5 °C
Accuracy temperature Number: 0.5 °C
Battery/rechargeable battery: 3 x AA
Depth: 135 mm
Designation ANSI: AA
Dimensions (WxDxH): 60 x 135 x 28 mm
Flow speed: 0.01 ... 30 m/s
Height: 28 mm
Length sensor: 180 mm
Manufacturer Article Number: 05630425
Max. flow speed: 30 m/s
Max. temperature: 70 °C
Min. flow speed: 0.01 m/s
Min. temperature: -20 °C
No. of batteries/rechargeable batteries: 3
Resolution flow speed: 0.01 m/s
Resolution temperature: 0.1 °C
Sensor (ØxL): 7.5 x 180 mm
Sensor Ø: 7.5 mm
Temperature: -20 ... 70 °C
Type: testo 425
Type of auxiliary energy: Battery
Weight: 268 g
Width: 60 mm

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