Feature: 1. Wide Application: Smart temperature and humidity sensors make life more comfortable and are widely used in offices, homes, warehouses, shops and other places. 2. APP Remote Control: Detect changes in temperature and humidity, and can be intelligently linked with the mobile APP, so you can control your smart life. 3. Real 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. 4. Accurate Readings: The home hygrometer thermometer provides accurate temperature and humidity readings to ensure you can accurately monitor your environment. 5. Wireless Connectivity: The sensors can be connected wirelessly and can be easily and conveniently integrated with smart home systems. Specification: Item Type: Temperature Humidity SensorMaterial: PlasticBattery Capacity: AAA dry cellx2 (shipped without batteries) Static Current: ∠10uA Alarm Current: ≤15mA Low Power Undervoltage: ≤2.2V Detection Temperature: -20°C to 60°C. Package List: 1 x Temperature Humidity Sensor1 x Double Sided Adhesive1 x Instruction Manual1 x Card Removal Pin