1This digital anemometer adopts magnetic sensitive technology and precise operational amplifier chip, more accurate and high sensitive 25 wind speed unit conversion: m/s, ft/m, mph, km/h, Knots; 2 wind temperature unit conversion: / 312 wind levels indication you don't need to make complicated conversion from value to wind scale 4With backlight for easy reading at darkness. 5With overload indication and data hold function Description: This digital anemometer is great to measure wind speed and wind temperature. LCD screen displays the measuring value at Max./ AVG. Widely used to measure wind speed for electric fan at home, office, car, air condition, exhaust fan, sailboat and navigation. Features: This digital anemometer adopts magnetic sensitive technology and precise operational amplifier chip, more accurate and high sensitive. 5 wind speed unit conversion: m/s, ft/m, mph, km/h, Knots; 2 wind temperature unit conversion: /. 12 wind levels indication you don't need to make complicated conversion from value to wind scale. With backlight for easy reading at darkness. With overload indication and data hold function. Specifications: Condition: 100% Brand New Mode Number: UT363 Material: Plastic Color: Red + Black Power Supply: 3 x AAA Batteries (not included) Size(L x W): approx. 16 x 5cm / 6.30 x 1.97inch Weight: approx. 145g Function Range Resolution Accuracy Note Wind Speed Measurement 0~30 m/s 0.1 m/s (5% rdg + 0.5) Temperature Range -10~+50 0.1 2 Wind Scale 14~122 0.2 4 Wind scale only for reference Level 0~12 Level 1 1 Sample Rate 0.5second 0.5secondrefresh Overload Indicator OL display "OL" Max./AVG. Measurement MAX. / AVG. Display "MAX/AVG" Data Hold HOLD Display "HOLD" Unit Shift Speed:m/s, ft/m, mph, Km/h, Knots, Temperature:, Backlight BL Manually turn on/off Auto Power off 5 minutes Auto power off if there is no operation lasting 5 minutes Low Battery Indicator 3.0~3.5V Display symbol of low battery Package Included: 1 x Digital Anemometer(Battery not included) Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.