Benetech GM816B Digital Anemometer

Features 1. Air Velocity & Temperature Measurement； 2. Max/Average/Current air velocity measurement; 3. ℃/℉ Temperature unit selection; 4. Five units of air velocity:M/s, Km/h, ft/min, Knots, mph 5. Beaufort scale; 6. Data retention; 7.  Wind chill indication; 8. Record data; 9,Bluetooth function. Specifications  Model GM816B Speed Measuring Range 1-30m/s Speed Accurancy 0.1m/s Mearusing Error ±5% ± 0.1m/s Temperature Measuring Range -10-45 oC Temperature Accurancy 0.1 oC Mearusing Error ±2 oC Power Supply 3x1.5V AAA Battery without Size 188.4x56.1x36.03mm(LxWxH) Weight 129.2g(without Battery) Package Paper Box(without Battery) Working Condition -10-50 oC (14-122 oF) Less Than 90%RH Storage Temperature -40-60 oC (-40-140 oF) Temperature Sensor NTC Negative Temperature Coefficient Resistor Working Current 7mA(Backlight) Bluetooth APP Available Wind speed and temperature simultaneously measuring Available Max/Min Speed Current Speed Available Unit m/s  ft/min  kmh  knots  mph Wind Cold Tips Available Wind Level Available HD Backlight Available Data Keeping Available Data Recording Available oC/oF Swithching Available Automatic Cut Off Power Available   Packing List Instructions*1 Host*1 package box*1 1.5V AAA Battery *3（Not included）