The testo 405i Smart Probe hot-wire anemometer is a wireless instrument for measuring air flow velocity, temperature, and volume flow. It is equipped with a telescopic shaft which extends to 15†for easy in-duct testing. You can reliably determine timed and multipoint flow traverses. FEATURES
Measures air velocity, volume flow, and temperature
Measures in-duct air flow and automatically calculates volume flow (enter duct dimensions simply)
Small dia. (<0.5â€Â) and 15†telescopic shaft length is ideal for in-duct flow averaging and timed traverse
Perform air duct leakage tests
INCLUDES testo 405i, Bluetooth hot-wire anemometer with App, incl. 3 AAA batteries and certificate of calibration