These meter feature a large, 1” impeller mounted on a sapphire jewel bearing, which means it starts rotating with the slightest puff of air – 0.3 mph! And this unique patented user-replaceable impeller can easily be replaced if it is damaged or worn. Included slip-on protective cover, neck lanyard, CR2032 coin cell battery and Certificate of Conformity.
Specification
Air Velocity Range & Accuracy
0.4 to 60.0 m/s, 1.0 to 218.0 km/hr,59 to 11948 ft/min, 0.8 to 135.0 MPH, 0.6 to 118.3 knots; ±3%