ERAY Digital Anemometer Wind Speed Gauge Handheld Air Velocity Flow Volume Meter with Backlight LCD Display, Suitcase and Battery Included

Specifications: ? Air Velocity: ? ? M/S [Range: 0.40 - 30.00 m/s; Resolution: 0.01 m/s; Accuracy: (3% + 0.20 m/s)] ? ? Km/H [Range: 1.4 - 108.0 km/h; Resolution: 0.1 km/h; Accuracy: (3% + 0.8 km/h)] ? ? Ft/Min [Range: 80 - 5900 ft/min; Resolution: 1 ft/min; Accuracy: (3% + 40 ft/min)] ? ? MPH [Range: 0.9 - 67.0 mph; Resolution: 0.1 mph; Accuracy: (3% + 0.4 MPH)] ? ? Knots [Range: 0.8 - 58.0 knots; Resolution: 0.1 knots; Accuracy: (3% + 0.4 knots)] ? Air Flow: ? ? CMM (cubic meters/min): [Range: 0-9999 m3/min; Resolution: 1; Area: 0-9.999m2] ? ? CFM (cubic ft/min): [Range: 0-9999 ft3/min; Resolution: 1; Area: 0-9.999ft2] ? Air Temperature: ? ? Range: 14 - 140°F (-10 - 60°C ); Resolution: 0.1°F/°C; Accuracy: 4.0°F (2.0°C)] ? Display: Dual function 0.5" (13 mm) 4-digit LCD ? Sampling Rate: 1 reading per second approx ? Sensors: Air velocity/ flow sensor: Conventional angled vane arms with low-friction ball bearing Temperature sensor: NTC-type precision thermistor ? Automatic Power Off: Auto shut off after 15 minutes to preserve battery life ? Operating Temperature: 32 - 122°F (0 - 50°C ) ? Storage Temperature: 14 - 140°F (-10 - 60°C ) ? Operating Humidity: