The Ceiling Mounted Dual Technology Occupancy Sensor employs both passive infrared (PIR) and ultrasonic technology to accurately detect occupancy and automatically turn on lighting.

The Ceiling Mounted Ultrasonic Occupancy Sensor accurately detects occupancy and automatically switches lighting on and off as needed.

The Power Pack supplies low voltage power to ceiling mount sensors and slave packs. The Power Pack includes a line voltage relay that is controlled by the sensor to switch lighting on when a room or area is occupied and off when unoccupied.
Similar to the power pack, the auxiliary relay does not supply power, but switches lighting and HVAC loads based on a control signal from the occupancy sensor.