PHOTO SENSORS/TIME CLOCKS | Features: Cadmium Sulfide Photocell, Sonic-Welded Polycarbonate Housing, 6 in Wire Leads | Features: Energy-Efficient Mechanical Timers Do Not Require Electricity to Operate, Automatically Limit the on Times, Press-on Knob Design Ensures Quick and Easy Installation, Cfl Compatible, Provide Direct Replacement of a Standard Wall Switch in Single o | Passive Infrared Sensors That Automatically Control the Lights in an Area. These Sensors Detect Heat From Occupants Moving Within an Area to Deterine When the Space Is Occupied. Combines a Maestro 0-10 v Dimmer With an Occupancy Sensor. Controls 1-10 VdcFurbay Electric Supp