The General Tools HWA4214SD anemometer-thermometer can measure and log the output of exhaust fans and blowers. The hot wire sensor at the end of its telescoping probe can detect breezes as gentle as 40 ft./min (0.2 m/sec), making it ideal for low-airflow applications.
Features:
Measures and displays air speed in several Imperial or metric units
Also measures and displays ambient temperature
Includes the replaceable #P4214SD telescoping hot wire air speed-temperature probe
Type K/J port with automatic temperature compensation (ATC) for measuring surface temperature