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)