GT8913 Handheld Digital LCD Hot Wire Anemometer, Battery Not Included

1. Measure current wind speed, temperature 2. Measure wind speed / MAX wind flow/min wind flow 3. 2 / 3 wind flow value / average value 4. Wind speed/flow units and temperature units selection 5. Real-time measurement when connecting USB with computer software 6. Backlight and data holding( HOLD) 7. Low battery indication 8. Powered by rechargeable lithium-ion batteries 9. Automatic shutdown setting 8. 4 x AAA batteries (Not Included)