Testo 425 Best Thermal Anemometer With Flow Probe

testo 425 hot wire anemometer

In order to establish whether an air conditioning or ventilation system is functioning properly, among other things you need to check the flow speed or the volumetric flow in the ventilation duct. If the airflow velocity is too low, the room loads are not correctly discharged and optimum room air quality can no longer be guaranteed.

Testo anemometer

The testo 425 anemometer can measure air velocity from 0 to 20 m/s (0 to 4000 ft/min) and temperature from -20 to 70°C (-4 to 158°F). anemometro testo 425 has a slim and ergonomic design and can be used with one hand. The anemometer also features a backlit display, hold function, and min/max function for storing and recalling the highest and lowest readings.

TESTO 425 With Flow Probe Key features:

• Temperature and flow measurement as well as volumetric flow calculation
• Permanently attached extendible telescopic probe – maximum length 820 mm, diameter 7.5 mm
• With single and multi-point averaging
• Hold function, display of min/max value, Auto-off function

more information

TESTO-425 Thermal Anemometer Specifications:

• Temperature – NTC
• Measuring range: -20 to +70 °C
• Accuracy :
• ±0.5 °C (0 to +60 °C) , ±0.7 °C (Remaining Range)
• Resolution: 0.1 °C
• General technical data
• Weight: 285 g
• Dimensions : 182 x 64 x 40 mm
• Operating temperature: -20 to +50 °C
• Product-/housing material: ABS
• Battery type : 9V block battery, 6F22
• Battery life: 20 h
• Storage temperature: -40 to +70 °C
• Velocity -Thermal-anemometer
• Measuring range : 0 to +20 m/s
• Accuracy : ±(0.03 m/s + 5 % of mv)
• Resolution: 0.01 m/s