Features: 1. Air Velocity and wind temperature measurement. 2. Max/Min/Average/Current reading. 3. Five unite of air velocity:M/s,Km/h,ft/min,Knots,mph. 4. Data Hold. LCD backlight display. Manual/Auto power shut off. 5. Scale indication. Wind chill indication. Low battery indication. 6. Probe extension cords stretch 1 meter. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. 2. Objects may have Logo, if you want to know, please contact us. If you mind, please do not bid. Specification: Type: Digital Anemometer Air Velocity Range: Unit/Range/Resolution/Accuracy: M/s 0~45 0.1 3% Ft/min 0~8800 19 Knots 0~88 0.2 Km/hr 0~140 0.3 Mph 0~100 0.2 Temperature Range: Unit/Range/Resolution/Resolution: C 0C~45C 0.2 2C F 32F~113F 0.36 3.6F Wind Chill Indication: Yes Beaufort Wind Scale Display: Yes C/F Switchable: Yes Data Hold: Yes Max./Min./Ave. Value: Yes Backlight: Yes Auto/Manual Switch off: Yes USB connection for the vanes and the display: Yes Thermometer Sensor: NTC Temperature sensor Operation Condition: -10C~50C(14F~122F) /90%RH Power Supply: 1*9V Battery (Not included) Product Size Main Unit:147mmx72mmx35mm Vanes:172mmx65mmx29mm Include: 1 x Digital Anemometer 1 x storage case 1 x Certificate of conformity 1 x wind wheel 1 x Manual 1 x Color box includes: 1 x Digital Anemometer 1 x storage case 1 x Certificate of conformity 1 x wind wheel 1 x Manual 1 x Color box