Honeywell 951WG-WH Stubby Recessed Magnetic Contact Switch
Brand: Honeywell

3/8" Diameter Miniature Press Fit Magnetic Contact with a 3/4" long magnet, the 951WG is ideal for casement windows, sliding windows, and other thin frame applications

1 in. long magnet, it is ideal for casement windows, sliding windows and thin frame applications
More powerful Alnico 8 magnet for up to 7/16 in. (11mm) gap
1 foot zip cord leads are standard
Monitors the opening and closure of doors and windows
Can be added to a wireless home security system with video surveillance cameras and more