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Testo 425 CFM Hot-Wire Anemometer - 0560 4251

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Testo 425 CFM Hot-Wire Anemometer - 0560 4251

Testo 425 CFM Hot-Wire Anemometer - 0560 4251


0560 4251 425 CFM Hot-Wire Anemometer by Testo

The compact testo 425 anemometer with permanently attached thermal flow probe (probe head 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 Vane Meas. Range: 0 to +20 m/s
Accuracy: ±(0.03 m/s +5% of mv)
Resolution: 0.01 m/s

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