Detex MS2049S Magnetic Switch Detex MS2049S magnetic switch is suface mounted and are designed primarily to serve as sensing devices to detect the opening of a door or window. The Detex MS2049S can be used to serve as a trigger for a wall mounted Detex Exit Alarm or as a direct switch to set off many kinds of audible or visual alarms. The Detex MS2049S features tamper protection, the mounting and cover screws are physically inaccessible while door is closed.
