The VITM4-EBDSPIR-PRM is a Flush Mounted Ceiling PIR Presence Detector, provide automatic control for lighting, heating and ventilation loads. The detector 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.