Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact - 2-3/4 IN Gap - Open/Closed

Used for overhead doors in both industrial and residential situations where a wide gap is present Adjustable to fit most door-channel widths Switch contained in curved low-profile cast-aluminum housing for surface mounting on garage floor Magnet enclosed in gray ABS case on L-bracket 24" (61cm) wire leads enclosed in armored cable Contact reed switch has deactivated rhodium on gold underplating for a longer expected life For open/closed loop circuits 23/4" (70mm) Gap Mounting bracket included Limited lifetime warranty