DOOR SENSOR
Zemismart door sensor, also known as a magnetic door/window sensor, is a compact security device designed to detect the opening or closing of doors, windows, or other entry points. It consists of two primary components: a magnet and a sensor unit. The magnet is typically installed on the moving part (e.g., a door or window), while the sensor is fixed to the stationary frame. When the door or window is closed, the magnet aligns with the sensor, maintaining a closed circuit. If the door/window is opened, the magnetic field is disrupted, triggering the sensor to send an alert to a connected security system, smart hub, or mobile app. Door sensors are widely used in residential, commercial, and industrial settings for intrusion detection, home automation, and safety monitoring.