Vane Probe Thermoanemometer with 2-3/4" (70mm) vane

Handheld meter simultaneously displays air velocity (m/s, fpm, Km/h) and temperature (°F or °C) on a large, backlit LCD. Unit also features detection of flow direction, Hold function, min/max and average readings, and auto shut-off. Choose from three vane diameters ranging from 0.55" (14 mm) to 2.5" (100 mm)-allows you to fit the vane probe into almost any duct, conduit, grille, or wall space. Retractable cable measures 7-ft (2.4-m) L. What's Included: Vane probe, soft carrying case, and calibration document supplied by the manufacturer. Three different vane sizes let you take measurements even in the tightest areas Smallest vane measures only 0.55" (14 mm) in diameter Automatic CFM measurements