Dimmer With Push On/off Knob, 3-Way | Controls 600 W Incandescent or Halogen Loads. Push On/off; Rotate to Adjust Light Level | Features: Auto Daylight Saving Time Adjustment, Low Battery Indicator, Cr2 Lithium Battery Provides a Minimum of 2 Years of Time Keeping Without Ac Power, Manual Override Feature, User Program Selections Are Stored in Non-Volatile Memory, 5 Year Warranty | 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