Product Description: Quantity: 1 set Color: Black feature: Measurement of wind speed and temperature wind chill indicator Temperature displayed in Celsius or Fahrenheit Different units of wind speed measurement Wind speed measurement: current/average/maximum low battery warning Backlight LCD Auto/Manual Power Off Mini High Precision Anemometer Accurate wind speed measurement between 0.3-30m/s ( 5% of radiation velocity), 0.1m/s resolution; 0.2, temperature -10 ~ 45 (2) and wind chill in high precision and real-time measurement. Multifunctional MultimeterMeasure wind speed, wind chill indication, wind temperature; The backlight screen makes it easy to read in the dark. Versatile digital anemometerThe AP-816B wind speed indicator can be used not only for outdoor activities, such as shooting, sailing, mountaineering measurement, but also for electrical equipment testing, like HVAC devices and research measurement, from navigation to aerial surveillance. Intel Plus smart and portableCompact and lightweight, easy to carry; Auto/manual power off; / , Wind speed unit selects m / s, ft / min, knots, km / h, km / h, high precision pressure sensor. Guarantee Customer Service Guarantee 3V ( CR2032)*1 Battery (included), low battery indicator with auto power off function.