Features:Wind speed temperature and humidity measurementsWind speed unit selection: m / s ft / min knots km / h mphBeart scale White backlight displayC /F unit conversion.Maximum / Minimum / Average reading functionData hold function cold index prompt functionLow battery warning Automatic shut-downCalibration function?Descriptions:Wind speed measurement range: 0.3 to 30 m / s? Accuracy: 5%Temperature measurement range: -10 to 50 (14 to 122oF) Accuracy: 1 degree CelsiusHumidity measurement range: 20% - -99%? Accuracy: 5%Resolution: 0.1m / s 1% 0.1Operating temperature: 0 to 50 (32 to 122oF)Operating humidity: 10 to 90% RHStorage temperature: -10 to 60 (14 to 140oF)Storage humidity: 10 to 75% RH?Specifications:Material: plasticSize: 110 * 45 * 20mmColor: black red blue?Package included:1 x 3-in-1 Anemometer (Not Include Battery)?Notes:1.Due to the difference between different monitorsthe picture may not reflect the actual color of the item. We guarantee the style is the same as in the pictures.2.Due to the manual measurement and different measurement methods please allow 1-3cm deviation.Thanks! Origin:CN(Origin) Certification:NONE Model Number:3-in-1 Anemometer Wind speed measurement range:0.3 to 30 m / s Temperature measurement range:-10 to 50C (14 to 122oF) Humidity measurement range:20% - -99% Color:black, red, blue Size:110 * 45 * 20mm Features:Wind speed, temperature and humidity measurements