Classrooms and larger spaces are conveniently controlled by the CMR PDT 10 Series Extended Range occupancy sensor. Even when classrooms are filled with shelving, hanging projects, or lab benches; the CMR PDT 10 provides total coverage. When mounted at 9 ft. this sensor provides line of sight PIR detection up to 28 ft. in all directions and combines overlapping Microphonics for detection around obstructions. These attractive ceiling mount sensors are perfect for large restrooms and are an ideal solution for retrofitting classrooms with concrete ceilings.