HABOTEST HT605S Digital Anemometer 0-12 Beaufort Scale Handheld Wind Speed Meter with Backlight LCD Screen Air Flow Meter Air Velocity Gauge Temperature Humidity Meter for Sailing Surfing Drone Flying This is a professional digital anemometer with stable performance, safety and reliability. It is widely used in wind energy, meteorology, industry, agriculture, hydrology and water conservancy, environmental , highways, airports and ports, etc Features: 3-in-1 Multifunction Anemometer: with stable performance and reliable quality, the professional digital anemometer not only can measure wind speed, but also can measure temperature & humidity. High Accuracy Measurement: wind speed meter can accurately measure wind speed in 6 units: m/s, km/h, mil/h, ft/m ft/s, knots. Range 0.7-30m/s, 2.5-108km/h, 2.3-98.5ft/s, 137-5900ft/m, 1.3-58.3knots, 1.5-67.1mil/h. More Features of Anemometer: data hold function, can hold the reading; MAX/MIN function, it will show the highest/lowest reading on the display; manual / auto power OFF optional; low battery indication. Handheld LCD Screen Meter: this wind speed gauge equipped a LCD screen with backlight, can reading better and clearer both under sun or in dark. Compact and lightweight, you can keep it in pocket. Wide Applications: it is widely used in wind energy, meteorology, industry, agriculture, hydrology, highways, airports, etc. Specifications: Material: ABS Air Velocity Unit: m/s, km/h, mil/h, ft/m, ft/s, knots Air Velocity Range: 0.7-30m/s, 2.5-108km/h, 2.3-98.5ft/s, 137-5900ft/m, 1.3-58.3knots, 1.5-67.1mil/h Temperature Range: -20~60℃(-4~140℉) Humidity Range: 0~100%RH Beaufort Scale: 0-12 Display: LCD with backlight, MAX display 9999 Air Velocity: 0.70-30.00m/s Sampling Rate: One reading per 0.5 sec. Sensor: Air velocity/flow sensor-angled vane arms with bearing Max/Min: Minimum, maximum measurement Data Hold: Freeze reading Operating Environment: Temp. 0-40°C, humidity<80%RH, Altitude<2km Storage Condition: Temp. -10-50°C, humidity<80%RH Auto Power-off: 10 minutes Power Supply: 3 * 1.5V AAA battery (NOT included) Item Size: 143 * 58 * 26mm / 5.63 * 2.28 * 1.02in Item Weight: 112g / 3.95oz Package Weight: 188g / 6.63oz Package Size: 18.3 * 9 * 5.5cm / 7.20 * 3.54 * 2.17in Package List: 1 * Digital Anemometer 1 * Pouch 1 * User Manual (English)