Features1Wide Application: Smart temperature and humidity sensors make life more comfortable and are widely used in offices, homes, warehouses, shops and other places. 2APP Remote Control: Detect changes in temperature and humidity, and can be intelligently linked with the mobile APP, so you can control your smart life. 3Real Time Monitoring: The temperature humidity detector monitors the temperature and humidity in your home or greenhouse in real time, helping you to take timely action when necessary. 4Accurate Readings: The home hygrometer thermometer provides accurate temperature and humidity readings to ensure you can accurately monitor your environment. 5Wireless Connectivity: The sensors can be connected wirelessly and can be easily and conveniently integrated with smart home systems. SpecificationItem Type: TemperatureHumiditySensorMaterial: PlasticBattery Capacity: AAA dry cellx2 (shipped without batteries)Static Current: 10uAAlarm Current: 15mALow Power Undervoltage: 2.2VDetection Temperature: -20C to 60C Package List1 x TemperatureHumiditySensor1 x Double Sided Adhesive1 x Instruction Manual1 x CardRemovalPin