TESTO 425 - Hot wire anemometer - 0560 4251 TESTO

The compact testo 425 anemometer with telescopic hotwire deported. The flow rate, whose calculation is very accurate with the ability to accurately capture the surface of the duct, is shown directly on the display. Calculating a time average or spot, the temperature and the measured flow, provide an analysis of the mean flow. The Min / Max can also be displayed on the screen, along with the hold function keeps the current value measured at the screen.

• Measure temperature, air velocity and flow volume
• Averaging time and punctual
• Values ​​Min / Max
• Storing measured values ​​with the Hold key
• Backlit
• Auto-Off
• TopSafe, the protective case (optional)
• The TopSafe protects against dirt and shocks

• Storage temperature	-40 ... +85 ° C
  Operating Temperature	-20 ... +50 ° C
  Battery Type	9V, 6F22
  Autonomy	20 h
  Weight	285 g
  Size	182 x 64 x 40 mm
  Housing material	ABS

  Probe type NTC
  Measuring range	-20 ... +70 ° C
  Accuracy	± 0.5 ° C (0 ... +60 ° C) ± 0.7 ° C (remaining range)
  Resolution	0.1 ° C
  Type Thermo
  Measuring range	0 ... 20 m / s
  Accuracy	± (0.03 m / s +5% vm)
  Resolution	0.01 m / s