Alarm Contacts

White 3/8" Plunger Contact Door Window Alarm Switch Adjustable (10/20/50 Pack) 3/8" Diameter Mounting Hole needed 3 mm pre-travel stroke and 7mm ov...

White & Brown 3/8" Recessed Wired Door Window Alarm Contact Terminal (10/20/50 Pack) 3/8" Door Contacts with Magnet Works for all alarm systems...

White Magnetic Pill Door Window Security Alarm Contact Terminal (10/20/50 Pack) Size: 1-1/8" x 7/16" x 1/4" Operate 3/4" Gap minimum 3M Adhesive E...

Overhead Door Garage Roll-Up Shutter Security Alarm Contact Sensor MPN: DT-3012 Condition: New Overhead Mounted Switch with Magnet Heavy Duty Rol...

White or Brown 3/8" Recessed Wired Security Door Window Alarm Contact (10/20/50 Pack) 3/8" Door Contacts with Magnet Works for all alarm systems th...

Overhead Door Garage Floor Switch Sensor Security System Alarm Contact MPN: DT-3016 Condition: New Overhead Door Contact or Switch with magnet an...

Overhead Door Garage Roll-Up Shutter Security Alarm Contact Sensor Overhead Mounted Switch with Magnet Heavy Duty Roller Shutter Contact Magnet Mou...

White 3/4" Recessed Switch Ball Window Door Alarm Contact (10/20/50 Pack) Plunger style contacts Perfect for doors or windows No magnet to be insta...

White & Brown 3/8" Recessed Mount Alarm Magnetic Contact Switch (10/20/50 Pack) Ideal for tight fitting window frames where you cannot drill a ...

White & Brown Securiy Alarm Contact Surface Mount Home Switch Sensor (10/20/50 Pack) Surface wired magnetic contact Mini Stick-on contact with...

2" Surface Mount Magnetic Alarm Contact Switch, Window Door Sensor White A magnetic alarm contact switch that can be used as a door sensor or windo...

White Recessed 1" Alarm Contact Switch 1.5" Gap Home Security (10 Pack) 1" Diameter Press Fit Steel Door Contact Wide Operating Gap 1.5" min. Easy ...