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3 in 1 Measurements Temperature, air flow & volumetric flow calcualtion
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Extendable telescopic probe
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Single & multi-point averaging
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Hold button to freeze readings
The functional testing of ventilation and air conditioning systems includes monitoring the flow speed in ventilation ducts. If the air flow velocity and volumetric flow are not set correctly, the room air quality may suffer. The testo 425 thermal anemometer measures the flow speed and automatically calculates the volumetric flow.