Alarm Switch Screw Terminals N.O. Contact/Mag; 3/4" Gap
By Seco-larm (SM-300Q/W)
MCM Part #82-13870
For added protection around your home, add a pair of Surface Mount Magnetic Contact Switches to almost any security system. The switch is ideal for any normally open location and will send an alert signal to your security system when it is no longer in a normally open state.