Features: Premium material: Made of quality material, sturdy, practical, not easy to break, and can be used for a long time. Battery powered: powered by 2 AAA batteries batteries not included, easy to use and can be replaced at any time. WiFi Connectivity :Connects to your home WiFi networks, allowing you to monitors temperature and humidity from anywhere using your smartphone. Voice Control Compatibility: Allowing you to control the temperature and humidity with your voice. Wide Application: Multiple temperature modes are adjustables and suitable for different scenarios. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: USB Power Input: DC5V Battery Input: DC3V AAA X2Not Include Static Current: 90uA Alarm Current: 40mA WiFi: 2.4G, 802.11 b/g/n Zigbee Standard: Zigbee 3.0 Detect Temperature: -10 °C 60 °C Detect Humidty: 0-100RH Alarm Sound Volume: 55dB Installation method: Wall mounted/ Horizontal placement Working Temperature: -10°C60°C Working Humidity: 90RH Temperature error: ± 0.5 °C Humidity error: ± 5 Package List: 1X Mini Temperature Humidity Sensor