Features:  This hot-wire anemometer displays air velocity and temperature or CFM/CMM and temperature simultaneously on the large LCD.  Super slim probe is suitable for the measurement of grid or small space.  The measurement function of maximum/minimum values.  Can provide the conversion of a variety of wind speed units: m/s, km/h, ft/min, knots, MPH.  Used for ventilation ducts, fans, blow dryers, refrigerators, air conditioners, clean rooms, painting shops and other applications. Specification:           Wind speed measurement           Wind speed unit      Range     Resolution     Accuracy           m/s     0.1~25.0     0.01     ± (5% + 1d) reading / ± (1% + 1d) full range           km/h     0.3~90.0     0.1           ft/min     20~4921     1           knots     0.19~48.5     0.1           MPH     0.22~55.9     0.1           Air Flow Measurement           Air Flow Unit     Range     Resolution           CFM     0~999900 ft3/min     0.001-100           CMM     0~999900 m3/min     0.001-100           Temperature Measurement           Temperature Unit     Range      Resolution      Accuracy            & 8451;     0 ~ 50 & 8451;     0.1     ± 1 & 8451;           & 8457;     32 ~ 122 & 8457;     0.1     ± 1.8 °F         Plug: EU Plug  Voltage: AC 100-240V    Sampling time: 0.8 seconds  Operation temperature: 0~ 45& 8451;  Operation humidity: <80% RH (no condensation)  Storage temperature: -10~60& 8451;  Storage humidity: <90% RH (no condensation)  Automatic shutdown time: 5 minutes  Battery: 3pcs x 1.5V AA battery (NOT included)  Size: Approx. 150*75*32mm/5.9*3*1.3inch  Weight: Approx. 1021g / 36oz      Package List:      1 x Anemometer  1 x EU Plug  1 x USB Cable  1 x Thermal Wind Probe  1 x Plastic Box  1 x User Manual