Product Parameter Wind speed range   unit range resolution accuracy m/s 0.3~30 0.1 +5% ft/min 59~5905 19 knots 1~55 0.2 Kilometres /hour 2~90 0.3 Miles/hour 1~65 0.2 temperature range unit range resolution accuracy ℃ -10℃~45℃ 0.2 ±2℃ ℉ 14℉-113℉ 0.36 ±3.6℉ Air volume indicator range range resolution area CMM(M3/MIN) 0-999900 0.001-100 0.001-9999 CMS(M3/S) 0-999900 0.001-100 0.001-9999 CFM(FT3/MIN) 0-999900 0.001-100 0.001-9999 Working Temperature -10°C~45°C(14℉~113℉) Relative Humidity ≤90%RH Storage temperature 20°C~50°C(-4℉~122℉) Practical Scenario Scenario Application Sailing Air Conditioner Leaving the wind Climbing Sailing Exhaust fan