Notice: This device only can work along with a Zigbee 3.0 Gateway. You need to connect wifi with a zigbee 3.0 gateway successfully before use such zigbee 3.0 T&H sensor. Turn on the device and smart speaker, they will be connected automatically. The device is also compatible with eWeLink ZigBee 3.0 Gateway Hub. Tips for purchase: Zigbee version need a tuya zigbee hub to operate. APP name: Tuya Smart or Smart Life. This product needs to be used with zigbee3.0 gateway. Battery type: AAA1.5V*2. Quiescent current: ≤30uA. Low power undervoltage: ≤2.7V. Zigbee: Zigbee 3.0. Working temperature: -10℃~60℃. Working humidity: 0%~95%RH. Dimension: 70*25*21mm. Package Included: 1x Temperature and humidity Sensor, 1x Sticker, 1x User manual.