Details

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TESTO - Hot Wire / Thermal Anemomter
Brand: Testo
Model: Testo 425
 
Description:

• Measurement of flow velocity, volume flow and temperature
• Point and timed mean value calculation
• Max./min. values
• Hold button for freezing measurement value
• Display illumination
• Auto-off function
• TopSafe, protection of the instrument from dirt and impact (optional)

 
General Technical Data:

Operating temperature	-20 to +50 °C
Storage temperature	-40 to +85 °C
Battery type	9V block battery, 6F22
Battery life	20 h
Dimensions	182 x 64 x 40 mm
Weight	285 g
Housing material	ABS
Warranty	2 years

Sensor types

	Thermal	NTC
Measuring range	0 to +20 m/s	-20 to +70 °C
Accuracy ±1 digit	±(0.03 m/s +5% of m.v.)	±0.5 °C (0 to +60 °C) ±0.7 °C (remaining range)
Resolution	0.01 m/s	0.1 °C