GEFL-PB is a low profile flush mounted Movement Sensor, provides auto on/auto off switching. Lux Level Sensing. Movement Sensing. Adjustable Timer. Switches any type of load. Works with any type of lamp. This is a programmable green-i ceiling mounted PIR, a CP Electronics energy saving device – ceiling PIR movement sensor. This energy-saving switch uses PIR technology to detect motion, and controls lighting, heating and/or ventilation systems (max. 10A) depending on whether the area is occupied. An integrated photocell/lux sensor will ensure the lights remain turned off if there is sufficient natural light in the environment. The GEFL presence detector is designed to provide automatic control of lighting, heating or ventilation loads. It detects movement using a PIR sensor and turns the load on. When an area is no longer occupied the load will switch off after an adjustable time out period.