Enerlites MPC-50L-W 360 Low Voltage PIR Passive Infrared Ceiling Mount Occupancy Sensor, White FinishEnerlites MPC 50L W MPC 50L W Product Description The Enerlites MPC 50L W 360 passive infrared (PIR) occupancy sensors turn lighting systems on and off based on occupancy and ambient light level. The light level feature keeps lights from turning on if the ambient light level is sufficient. The sensors can be configured to turn the lighting on and hold it on as long as the sensor detects occupancy. Specifications: Brand: Enerlites Part Number: MPC 50L