Intermatic - IOS-DDR-WH - Commercial Grade Dual Load In-Wall Occupancy Sensor, White Hunter Controllers High mechanical strength

High mechanical strength

D battery transmitter power

Shorter kits mean that you can fit more Control Zone Kits in a valve box

Overall diameter: 2 3/4" (7

Intermatic - IOS-DDR-WH - Commercial Grade Dual Load In-Wall Occupancy Sensor, White Hunter Controllers High mechanical strengthSpec Sheet Install Manual Intermatic IOS DDR WH Commercial Grade Dual Load In Wall PIR Occupancy Vacancy Sensor, No Neutral Required, White 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.