The DISC-ET is a ceiling mounted energy management PIR sensor for lighting control. Its main purpose is to save energy by switching lights on upon detection of movement within its coverage area. When movement in the area ceases, the lights remain on for a predetermined duration, and are then switched off automatically.
The detector is equipped with an adjustable operation timer, which causes the output relay to drop out at the end of a selected duration (provided that no further movement is detected by the PIR sensor).