Features:Measure Wind Speed And Temperature.Large, Easy-To-Read Lcd Display With Backlight.Wind Speed In Scale Bar Graph Beaufort Wind.Wind Chill IndicationData Hold FunctionHigh Precision Pressure SensorFast Response, External ThermistorAuto/Manual ShutdownTemperature Display In C/FWind Speed Range: 0-30 M/SWind Temperature Range: -10-45 Centigrade (14-113F)Current/Maximum/Average Wind Speed ReadingWind Speed Unit: M/S, Km/H, Ft / Min, Knots, MphCe ApprovedAir Speed Specification:Range: 0 - 30M/S, 0 - 90Km/H, 0 - 5860Ft/Min, 0 - 65Mph, 0 - 55KnotsResolution: 0.1 M/S, 0.3 Km/H, 19 Ft/Min, 0.2 Mph, 0.2 KnotsThreshold: 0.1 M/S, 0.3 Km/H, 39 Ft/Min, 0.2 Mph, 0.1 KnotsAccuracy: 5%Air Temperature Specification:Thermometer: Ntc Thermometer.Range: Between -10 C And 45 C (Between 14 F And 113 F)Storage Temperature: Between -40 C And + 60 C, Between -40 F And 140 F.Resolution: 0.2 C, 0.36 F.Accuracy: 2 C, 3.6 FCurrent Consumption: Approx. 3MaOperating Humidity: Less Than Or Equal To 90% Rh.Weight: Approx. 0.25 LbPackage Included:1 * Digital Anmometer1 * 3V Cr2032 Battery1 * Lanyard1 * User Manual