Back كاشف حركة Arabic Bewegungsmelder German Detector de movimiento Spanish Liikumisandur Estonian آشکارساز حرکت Persian Liiketunnistin Finnish चाल अभिज्ञापक Hindi Pendeteksi gerak ID 人感センサ Japanese 모션 센서 Korean
 | It has been suggested that this article be merged with motion detection. (Discuss) Proposed since January 2024. |
A motion detector is an electrical device that utilizes a sensor to detect nearby motion. Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area. They form a vital component of security, automated lighting control, home control, energy efficiency, and other useful systems.