This is a miniature passive infrared occupancy detector which provides automatic control of lighting loads. This detector is for switched loads, be they fluorescent or LED luminaires.
The unit detects movement using a PIR sensor and then switches the load on, when an area is no longer occupied the load will switch off after an adjustable period of time. This unit also has the benefit of offering photocell hold off.
This product is designed to be mounted on a side face of a luminaire with a side mounted housing. The detector should be sited such that room occupants are covered by the detection pattern at a recommended mounting height of 2.8m. Lowering the mounting height will reduce the detection range.