Ceiling Mount Movement Sensor for Lighting Systems 1500 Sq feet coveragePir, 360, Commercial Grade 1500 Square Foot Coverage, Self adjusting, Ceiling Mount Occupancy Sensor, True White Typical coverage Usage: Open office Space, Storage Room, Lounge, Non partitioned Restrooms, Vending Room, and Hallways Coverage Area Coverage area is represented in square feet at the floor. Coverage is dependent on mounting location and height, magnitude or quality of detectable motion, the direction of motion compared to placement,