1. Material: ABS 2. Application: for the measurement of wind speed, temperature and humidity 3. Features: multiple wind speed units, large screen backlight display, wind speed level display, automatic shutdown 4. Scope of application: used in electric power, steel supply, petrochemical, energy saving, fishery, various fan manufacturing industries, etc. 5. Wind speed unit selection: m/s, ft/min, knots, km/h, mph 6. Wind speed measurement range: 0.3-30m/s 7. Accuracy: 5% 8. Temperature measurement range: -10 to 50oC (14 to 122oF) 9. Accuracy: 1 degree Celsius 10. Humidity measurement range: 20% to 99% 11. Accuracy: 5 percent 12. Resolution: 0.1m/s, 1%, 0.1oC 13. Display wind level: 0-12 14. Use environment: minus 10-50 degrees Celsius, less than 90 percent relative humidity 15. Storage environment: minus 10-60 degrees Celsius 16. Power supply: CR2032 button battery x 1 (delivery without battery) 17. Six-wheel fan blades, sensitive induction 18. If there is no operation for 10 minutes, the machine will automatically shut down 19. LED backlight display, easy to read data 20. Product size: 11.5 x 4.2 x 1.9 cm