Andowl WiFi Door/Window Sensor on Batteries in White Color Q-MC51Code: 40602663

A door/window sensor consists of two parts, one of which is placed on the movable part of the door or window, and the other on the fixed frame. In this way, when the two contacts are separated, the sensor is activated automatically. It runs on batteries and can be placed anywhere as it does not require a permanent connection to electricity. It gives you the ability to control it via Wi-Fi.