1-4pcs Tuya Smart Zigbee Temperature And Humidity Sensor Indoor Thermometer Hygrometer Monitoring Works With Alexa Google Home Description: Tips for purchase: 1. The sensor can not connect to WiFi. 2. The sensor communicate using zigbee protocol. 3. Tuya Zigbee Hub (GateWay) is required to work together (must). 4. For more technical features, please refer to the "Product technical characteristics" section 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 3.0 Working temperature:-20~ 60 Working humidity:maximum 95%RH Specifications: 1.Tuya Smart ZigBee Temperature and Humidity Sensor:Requires Tuya ZigBee Wireless Gateway Hub. 2.Real-time accurately measure the indoor temp and humidity,provide full care to your baby a nyti m e no matter the weather is hot in summer or code in winter. support Smart Life / Tuya App. 3.APP Remote Monitor,You can use your phone to monitor the temperature and humidity of your home anytime, anywhere. 4.New ZigBee technology with low power consumption microprocessor for long standby. 5.Smart scene linkage to your air conditioning and humidifier,offering your house with the most comfortable temperature and humidity. 6.Temperature & Humidity Alarm,You can preset the range for the temperature and humidity in the Scene page,when the temperature or humidity reaches the range,you will receive alarm message on APP. 7.Low Battery Reminder,When the battery power is low,it will push alarm message via APP,remind you to change the battery.Batteries are easy to obtain. 8.Widely used in various places and easily stick it to the wall with the sticker for simple installation. 9.Works with Third-Party Smart Speaker,Support inquiring the indoor temperature and humidity via voice commands through Alexa and Google speaker. 10.Sharing Function,Share your added temperature & humidity sensor with your family members,so they can also real-time monitor the indoor environment. 11.Temperature Unit Switching,You can switch temperature unit between Celsius and Fahrenheit in the set, then press the reset button once,temperature unit will switch. Alternatively, after setting it on the app, wait for synchronization. 12.Temperature & Humidity Records,You can view the historic curve of the temperature and humidity in the APP,and export to your email.