OSSMT Multi-Technology Decora wall switch vacancy Sensor is used to provide automatic lighting control for energy savings and convenience in a variety of commercial applications like Retrofit, Private and executive offices, Conference rooms, Storage areas, Restrooms, Classrooms, Lounges, Training areas etc. Fast, simple Installation: Fits in a standard wall box and replaces a single-pole wall-switch; neutral and no neutral options available. Sensor can be ganged together with other units in a multiple-switch wall plate. Low-profile design eliminates obtrusive scanning-device look. Elegant Decora wallplates complement any interior for sleek aesthetics; uses Decora wallplates and coordinates with Leviton’s popular line of Decora wiring devices. Convenient pushbutton provides manual-ON/OFF light switching at any time. Segmented Fresnel lens provides optimum sensitivity and performance. Designed with an extensive minor motion area where even slight body movements will be detected. LED indicator light flashes when sensor detects motion to verify detection is active. Green flashes for ultrasonic, red flashes for PIR. Self-Adaptive Technology: Callbacks for adjustment are eliminated. Time delay and sensitivity settings are continually adjusted to occupant patterns of use in auto adapt mode. True zero-cross relay switches at the zero crossing point of the AC power curve to ensure maximum contactor life and compatibility with electronic ballasts.