8901 LCD Portable Anemometer High Accuracy Digital Separated Type Industrial Wind Speed Meter Item Type: Anemometer Model: 8901 Material: ABS Purpose: It is suitable for flow velocity and wind speed measurement. Air Velocity Unit Range Minimum Resolution Critical Point Accuracy M/s 0~45 0.01 0.3 ±3%±0.1dgts Ft/min 0~8800 1.9 60 ±3%±10dgts Knots 0~88 0.02 0.6 ±3%±0.1dgts Km/hr 0~140 0.03 1 ±3%±0.1dgts Mph 0~100 0.02 0.7 ±3%±0.1dgts Temperature Unit Range Resolution Accuracy ℃ 0℃~+45℃ 0.2 ±2℃ ℉ 32℉~113℉ 0.36 ±3.6℉ Power 1x9V 6F22 Battery (Battery Not Included) Operating Temperature -10℃~+50℃（14℉~122℉） Working Humidity 40%RH~85%RH Storage Temperature -20℃~+60℃（-4℉~140℉） Storage Humidity 10%RH~90%RH