Smart Home- Zigbee Temperature And Humidity Sensor. Feature: Connected to Internet Via Zigbee Hub, Low Power Consumption, Reliable and Efficient Transmission Uploading Data to Server Continuously, Remote Checking by Mobile Phone(Android or IPhone IOS). Working with Air Conditioner, Humidifier and All the Tuya Smart Devices, to Ensure the Comfortable Status of Family or Office. Ultra Low Power Consumption Design with Low Battery Alert. Powered by 3Pcs AA Battery, Easy to Remove and Install. Anti-dismantling Design, Anti-theft Alarm. Multi-mode of Temperature Display. Specifications: Model Number: Zigbee WSD Communication Mode : Zigbee Host Dimension : 861 . 2x23mm Operating Temperature : -10-55 C Supply Voltage : DC3V ( AAA' 2 Battery,not Included) Host Material : Fireproof PC + Fireproof ABS Installation : 3M Glue Temperature Accuracy : + 0.3 Degrees Humidity Accuracy : + 3% RH . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.