The passive infrared sensors work by detecting the difference between heat emitted from the human body in motion and the background space. The sensor switch can turn a load ON and hold it as long as the sensor detects occupancy. After no motion is detected for the set time delay, the load turns OFF automatically. The IOS-DDR has two relays (equal to Dual Load Switch).

The IOS-DOV-DT series Dual Technology Occupancy Sensors In-Wall sensor switch controls a load based on occupancy, vacancy and ambient light levels. It combines passive infrared (PIR) and ultrasonic technologies to help avoid false triggering while increasing presence detection. Selectable modes allow the sensor to turn load ON and hold it ON as long as either or both technologies detect occupancy. If no movement is detected for a user-specified time of 15 seconds to 30 minutes, the load is turned OFF. The sensor provides a 180° coverage pattern, up to 1200 ft2 (110m2) for PIR and 400 ft2 (37m2) for Ultrasonic sensor.

The passive infrared sensors work by detecting the difference between heat emitted from the human body in motion and the background space. The sensor switch can turn a load ON and hold it as long as the sensor detects occupancy. After no motion is detected for the set time delay, the load turns OFF automatically. The sensor switch has one relay (equal to single pole switch), it also includes Ambient Light Level Sensor

The IOS-CMP-DT-U Dual Technology Line Voltage Occupancy Sensors control loads based on occupancy and ambient light levels. It combines passive infrared (PIR) and ultrasonic technologies to help avoid false triggering while increasing presence detection. Selectable modes allow the sensor to turn load ON and hold it ON as long as either or both technologies detect occupancy. If no movement is detected for a user-specified time of 5 seconds to 30 minutes, the load is turned OFF. The occupancy sensor provides a 360° coverage pattern, up to 1600 ft2 (150m2) for PIR and 1000 ft2 (93m2) for Ultrasonic sensor.

The IOS-CMP-U 360° Passive Infrared (PIR) Line Voltage Occupancy Sensors control lighting systems based on occupancy and ambient light levels. When movement is detected, the sensor turns the lights ON. If no movement is detected for a user-specified time, the lights are turned OFF. The occupancy sensor provides a 360° coverage pattern, up to 1200 square feet.

The IOS-CMP-DT-LV 360° Dual Technology Low Voltage Occupancy Sensors control the load based on occupancy and ambient light levels. It combines passive infrared (PIR) and ultrasonic technologies to help avoid false triggering while increasing presence detection. Selectable modes allow the sensor to turn load ON and hold it ON as long as either or both technologies detect occupancy. If no movement is detected for a user-specified time of 5 seconds to 30 minutes, the load is turned OFF. The occupancy sensor provides a 360° coverage pattern, up to 1600 ft2 (150m2) for PIR and 1000 ft2 (93m2) for Ultrasonic sensor.

The IOS-CMP-LV 360° Passive Infrared (PIR) Low Voltage Occupancy Sensors control lighting systems based on occupancy and ambient light levels. When movement is detected, the sensor turns the lights ON. If no movement is detected for a user-specified or Autoset time of 15 seconds to 30 minutes, the lights are turned OFF. The occupancy sensor provides a 360° coverage pattern, up to 1200 square feet.

The IOS-PP24 Power Pack supplies low voltage lighting control system. The power pack supplies low voltage power to occupancy sensors and other control devices, switching line voltage in response to signals from control devices.