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425 - Thermal Anemometer

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Product Description

testo 425, thermal anemometer with permanently attached flow probe (Ø probe head 7.5 mm), incl. temperature measurement and telescopic handle (max. 820 mm), battery and calibration protocol

The compact testo 425 anemometer with permanently attached thermal flow probe (probe head Ø 7.5 mm) incl. telescopic handle. Volume flow is shown directly in the display. Accurate volume flow calculation thanks to easy input of duct area. In addition, it is also possible to switch to the current temperature reading. Timed and multi-point mean calculation provide information on mean volume flow, flow speed and temperature reading. Min/max values can also be shown in the display. The Hold function makes it possible to freeze current readings in the display.

  • Temperature, flow and volume flow measurement
  • Multi-point and timed mean calculation
  • Max/min values
  • Hold button to freeze readings
  • Display light
  • Auto Off function
  • TopSafe, the indestructible protective case (optional)
  • TopSafe, instrument protection against dirt and knocks

 

Storage temperature -40 to +85 °C
Operating temperature -20 to +50 °C
Battery type 9V block battery, 6F22
Battery life 20 h
Weight 285 g
Dimensions 182 x 64 x 40 mm
Material/Housing ABS

Probe type NTC
Meas. range -20 to +70 °C
Accuracy ±0.5 °C (0 to +60 °C)
±0.7 °C (remaining range)
Resolution 0.1 °C
Probe type Thermo
Meas. Range 0 to +20 m/s
Accuracy ±(0.03 m/s +5% of mv)
Resolution 0.01 m/s

Additional Information

Additional Information

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