Feature:1) Wi-Fi version humidity temperature sensor2) Perceive the indoor environment temperature and humidity, and the LCD screen dynamically displays real-time values to create a comfortable family living environment3) Real-time monitoring of temperature and humidity changes, the temperature of the detector is accurate to the decimal point, and the temperature unit can be set to Fahrenheit (F) and Celsius (C)4) Give your child a healthier children's room, install the sensor in the baby's room, you can know the temperature and humidity changes in time5) The current temperature/humidity exceeds the set temperature/humidity, the temperature and humidity sensor will automatically alarm, the APP pushes the message, and the sensor emits a beeping soundSpecification:Type: Infrared Alarm DetectorColor classification: without batterySpecification: Tuya wifi-without batteryUSB input: DC5V/2A (use of USB can not use dry batteries)Input voltage: DC3V LR03*2Quiescent current: 75uAAlarm current: 60mALow voltage and undervoltage: 2.2VWiFi: 802.11 b/g/nDetection temperature: 10C-55CDetection humidity: 0-99%RHAlarm sound pressure: 55dBInstallation method: wall-mountedWorking temperature: 10C-60CWorking humidity: maximum 90%RHPacking list:1*Wifi version temperature and humidity detector (not including battery)1*Instruction1*3M wall stickerNotice:Due to manual measurement, please allow a difference of 1-3mm.Due to different displays and different lighting, the picture may not show the actual color of the item. Thank you for your understanding