Cup Thermo-Anemometer Extech AN400

Cup Thermo-Anemometer Pocket size Air Velocity meter and Thermometer With water resistant housing for outdoor use Features : Rotating cups provide accurate air velocity measurements Wide range air velocity measures m/ s, ft/ min, MPH, km/ h, and knots Dual LCD digital display of Air Velocity and Temperature Record Max and Min values Datalogger stores up to 100 readings Water resistant housing Complete with four AAA batteries Specification : Measurement Range Resolution Basic Accuracy m/ s 0.9 to 35.0 m/ s 0.1 m/ s ± ( 2% + 0.2 m/ s) km/ h 2.5 to 126.0 km/ h 0.1 km/ h ± ( 2% + 0.8 km/ h) knots 1.4 to 68.0 knots 0.1 knots ± ( 2% + 0.4 Knots) ft/ min 144 to 6895 Ft/ min 1 ft/ min ± ( 2% + 40 ft/ min) MPH 1.6 to 78.2 MPH 0.1 MPH ± ( 2% + 0.4 MPH) Temperature 32 to 122° F ( 0 to 50° C) 0.1° F/ ° C ± 1.5° F ( 0.8° C)