Fangrui Product Details 1. Description: 2. Input Voltage: Dc4.5v Lr03*3 (not Include Battery) 3. Quiescent Current: 30ua 4. Low Power Onderspanning: 2.7v 5. Wifi: 802.11b/g/n 2.4ghz 6. Working Temperature: -10 ~ 55 7. Working Humidity: ~ Rh 8. Specifications: 9. [1] Radio Transmission Circuit And Coding Technology To Solve The Problem Of Signal Interference Blocking 10. [2] A Variety Of Temperature Modes Can Be Adjusted, Suitable For Different Scenarios 11. [3] Wireless Transmission Of Data Signals, Mobile Phone Remote Monitoring 12. [4] Ultra-low Power Consumption, Long Battery Life 13. [5] With Low Voltage Monitoring Prompt Function 14. [6] Send Online Reports To The Host Regularly 15. [7] Anti-demolition Design In The Field Of Professional Security 16. [8] Split Design, High Reliability 17. Package Included: 18. 1×sensor 19. 1×user Manual 20. Notes: 21. Product Data With Error ±0.5 Is Normal 22. The Data Reporting Of Temperature And Humidity Is Conditional: 23. Data Reporting Rules, Temperature Change ±1°, Humidity Change ±, Which Change, Data Report App Platform