Single Piece, Wall (US Single Gang Box) Mount, Includes Black &
Off-White Covers.With its thin, sleek profile complimenting any
building's decor, the single-piece P-500 is designed to be affixed
to a standard USA single-gang wall switch box. Read range with the
PSC-1 is up to five inches (127 mm). Includes a four state LED
(red, green, amber, and off), an audio tone, and both black and
off-white covers standard.