The Bosch DS150i is a gray, request-to-exit PIR detector that signals an access control system or door control whenever motion is detected. The detector boasts a wrap-around coverage pattern and can be mounted on a wall or ceiling. The device includes an activation LED for visual status alerts. The DS150i Series includes the DS150i Detector and the DS151i Detector (black). They are created specifically for Request-to-exit (REX) programs. The DS150i and DS151i detect motion within their respective coverage areas and alert an access control system or door control device.