The SSD is a stylish, easy to install, and simple to use Passive Infrared (PIR) wall switch sensor. It is ideal for private offices, copy rooms, closets, or any small enclosed space without obstructions. A user programmable time delay ensures that once the room is vacated the sensor will time out and turn off the lights.FEATURES:• PIR detection - excellent RF immunity• Small motion detection to 20 ft• Self-grounding mounting strap• No neutral connection required• No minimum load and no current leakage to load• Line power & load wires are interchangeable - impossible to wire backwards(patented• Compatible w/ Electronic & Magnetic Ballasts, CFLs, & Incandescents• Push-button programmable without removing cover plate - adjustable time delays operating modes• Integrated LampMaximizer minimum on time (patented) provides increased fluorescentlamp life - disabled by default• Non-volatile settings memory