Feature: 1. Stable Connection: The temperature humidity monitor use unique technology, having more stable and reliable signal transmission, avoiding the problem of weak or unstable WiFi signal. 2. Precise Monitor: The hygrometer thermometer monitor has precise temperature and humidity sensors, can accurately monitor changes in the indoor environment and provide users with accurate data reference. 3. Real Time Sensor: The temperature sensor hygrometer can monitor and recored real time data, users can the data through a smart phone APP, and can also view historical records to understand trends in the environment. 4. Alarm and Automatic Control: Users can set the upper and lower limits according to their own needs, and the indoor temperature humidity sensor will send alarm reminders when exceeding the set range, and can also realize automatic control through the smart home system. 5. Various Use: The wireless temperature humidity monitor is suitable for various device connection, convenient for users to integrate smart home operations and improve the convenience and flexibility of home intelligence. Specification: Item Type: WiFi Temperature Humidity SensorMaterial: ABS Battery: 2Pcs AAA Lithium Battery (Shipped Without Battery). Package List: 1 x WiFi Temperature Humidity Sensor1 x Instruction1 x Double Faced Adhesive Tape