1. Power supply: 3.7V/1000mAh
2. Operating temperature: 0 degrees Celsius to 45 degrees Celsius
3. Air volume measurement range: 0-999900CMM
4. Wind speed measurement range: 0-5904 feet/minute
5. Operating humidity: 40-80%RH
6. Storage humidity: about 80%
7. Can measure current wind speed, temperature, maximum wind flow and minimum wind flow
8. Support five wind speed unit selections, manual/automatic shutdown
9. Support data retention, LCD backlight display
2. Operating temperature: 0 degrees Celsius to 45 degrees Celsius
3. Air volume measurement range: 0-999900CMM
4. Wind speed measurement range: 0-5904 feet/minute
5. Operating humidity: 40-80%RH
6. Storage humidity: about 80%
7. Can measure current wind speed, temperature, maximum wind flow and minimum wind flow
8. Support five wind speed unit selections, manual/automatic shutdown
9. Support data retention, LCD backlight display