ITEM NAME:Rz818 Anemometers Anemometer Lcd Digital Wind Speed Meter Portable Anemomet S1B4 Rz818 Anemometers Anemometer Lcd Digital Wind Speed Meter Portable Anemomet S1B4 1.2 in 1 digital anemometer for measuring air velocity(wind speed) and temperature. 2.With maximum, average and current air velocity measurement. 3.Temperature units ℃/℉ selection, 5 wind speed units selection: m/s, ft/min, Knots, Km/h, mph. 4.Large LCD display with backlight for easy operation in darkness. Perfect for home and outdoor uses. 5.Low battery indication, wind chill indication, auto power off & energy saving. Switchable Wind Speed Unit: m/s, Knots, Km/h, mph, ft/min Range: 0~30m/s, 0~90Km/h, 0~55Knots, 0~65mph, 0~5860ft/min Resolution: 0.1m/s, 0.3Km/h, 0.2Knots, 0.2mph, 19ft/min Threshold: 0.1m/s, 0.3Km/h, 0.1Knots, 0.2mph, 39ft/min Air Velocity Accuracy: Â ±5% Temperature Range: -10 ~ 45℃ / 14 ~ 113℉ Temperature Resolution: 0.2℃ / 0.36℉ Temperature Accuracy: Â ±2℃ / Â ±3.6℉ Auto Power Off: 14 minutes without any operation Thermometer: NTC Thermometer Operating.Low battery indication, wind chill indication, auto power off & energy saving. Temperature units ℃/℉ selection, 5 wind speed units selection: m/s, ft/min, Knots, Km/h, mph. Switchable Wind Speed Unit: m/s, Knots, Km/h, mph, ft/min.