Aubess Smart Temperature and Humidity Sensor ZigBee / WiFi Indoor Hygrometer Thermometer Smart Life Control Support Alexa Google Material: ABS Size: 70*24*19mm Product Weight: 30g Battery: LR03-1.5V/AAA*2 Wi-Fi Frequency: 2.4GHz IEEE 802.11 b/g/n Temperature Measurement Range: -20C ~ 60C Humidity Measurement Range: 0% RH ~ 100% RH Temperature Measurement Accuracy: 1C Humidity Measurement Accuracy: 5% RH Specifications: Intelligent Linkage When the ambient environment changes, intelligent linkage can be triggered. For example, the air conditioner turns on and adjusts to a set temperature automatically when the room temperature exceeds 28C. The humidifier activates when humidity drops below 20% RH. Device Sharing You can share added devices with family members, allowing them to monitor the ambient environment. Temperature Unit Selection in App Choose between Celsius and Fahrenheit as the temperature unit through the app. Third-Party Voice Control Compatible with Alexa and Google Assistant. Low Battery Alert Battery level can be monitored via the app. Temperature and Humidity Monitoring View temperature and humidity change curves and historical data. Wall-Mounted Design Easy to install with included mounting sticker. Package Included: 1 x Sensor 1 x Instruction Manual 1 x Back Sticker