CP PIR Presence/Absence Detector with provide automatic control for lighting heating and ventilation loads. The PIR sensor can be mounted either flush into a ceiling tile or using a surface mounting box. The low-profile design means the unit can be mounted in a narrow ceiling void. No external control boxes are required as the unit is self-contained. The simple plug-in connections reduce installation time. The optional infrared remote handset allows the user to override the set up on some models.