WIFI Description: Material : ABSSize: 70*24*19mmProduct Weight: 30gBattery:LR03-1.5V/AAA*2 Wi-Fi frequency: 2.4GHZ IEEE 802.11 b/g/nTemperature Measure Range: -20°C ~ 60°CHumidity Measure Range: 0% RH ~ 100%RHTemperature Measure Accuracy: ±1°CHumidity Measure Accuracy: ±5%RH Specifications: Intelligent Linkage When the ambient environment change, you can do intelligent linkage. For example, the air conditioner will be on and turn to specified temperature automatically when the room temperature surpass 28. And the humidifier will spray when the humidity is lower than 20% RH. Share devices You can share your added devices with your family members, so they can also monitor the ambient environment. Temperature Unit Selection in APP You can choose or as the temperature unit through app. Third-party Voice Control Works with amazon alexa, google assistant. Low battery alarm The battery level can be monitored. Temperature and humidity changes. Temperature and humidity change curve, historical data. Wall-mounted, easy to install Package Included: 1*Sensor 1*Instruction 1*Back sticker Zigbee Description: Product name: Temperature and humidity sensor Battery type:2*AAA(NOT INCLUDE) Product parameter:DC3V LR03 Quiescent current:≤10uA Alarm current:≤15mA Low voltage and undervoltage:≤2.6V Wireless Technology:ZigBee Working temperature:-10~ 50 Working humidity:maximum 95%RH Specifications: 1.Tuya Smart ZigBee Temperature and Humidity Sensor:Requires Tuya ZigBee Wireless Gateway Hub. 2.Real-time perception of temperature and humidity changes , support Smart Life / Tuya App. 3.New ZigBee technology with low power consumption microprocessor for long standby. 4.Smart scene linkage to your air conditioning and humidifier,offering your house with the most comfortable temperature and humidity. 5.Widely used in various places and easily stick it to the wall with the sticker for simple installation. 6.Can be used with Alexa and Google home Package Included: 1*Temperature humidity sensor 1*User Manual 1*Accessories package Notes: Zigbee product needs to be used with Tuya zigbee3.0 gateway.