MS-2049S Detex Magnetic Switch – Surface Mounted

MS-2049S Detex Surface Mounted Magnetic Switch is designed primarily to serve as a sensing device to detect the opening of a door or window; to assure that a protected door is securely under surveillance; to serve as a trigger for a wall-mounted Detex Exit Alarm; to signal that a door has been inadvertently left open; and to be used as a direct switch to set off many kinds of audio and visual alarms.