Microwave Radar Motion Detector for Automatic Sliding Doors

Radar motion detector is an activation sensor that uses microwave radar technology to detect approaching pedestrians and trigger automatic sliding doors. The Assa Abloy Microwave Radar Motion Detector for Automatic Sliding Doors is designed as an active‑type sensor that transmits low‑power microwave signals and analyses the reflected “Doppler” shift to identify movement, rather than relying on body heat like traditional PIR sensors. This makes it highly reliable in environments with strong sunlight, air‑conditioning drafts, or high ambient temperatures.

The Assa Abloy radar motion detector typically offers a well‑defined detection zone (often around 3–6 m) and can be configured for uni‑ or bi‑directional activation, depending on the entrance layout. It helps enhance accessibility by ensuring the door opens promptly and consistently for people in wheelchairs, with luggage, or using mobility aids, while also supporting mode‑switching functions such as “auto,” “open,” and “closed” via integration with the operator’s control board. Because it is specifically engineered for automatic sliding‑door systems, this radar motion detector improves both safety and energy efficiency by preventing unnecessary cycling and collisions at busy retail, hospital, and office entrances.