Zigbee smart switches once the device is connected to the zigbee gateway, the device can be intelligently controlled Group control multi-range use intelligent products can be grouped in different rooms to achieve group control functions Intimate protection baby health accurately measure indoor temperature and humidity in real time, providing comprehensive care for your baby at any time Applicationremote controlremotely monitor the indoor environment in real timeanytime, anywhere via smartphone Low and high temperatures remind preset the temperature in the app, it will alert you when the temperature reaches the limit, and then you can take appropriate actions to of your cute pet and feel as comfortable as Product Model: TH08 Voltage: DC2.5V-3V Battery: CR2032 Wireless: Zigbee3.0 Temperature range: -9.9-60℃ Humidity range: 0%RH-99%RH Temperature measurement accuracy: ±1℃ Humidity measurement accuracy: +5%RH Note: The device does not come with batteries, customers need to prepare their own 1 x CR2302 batteries Colour: White Material: PVC Flame Retardant Package Contents: 4x Temperature Humidity Sensor 1x Instructions in Chinese and English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.