Aleph DC-1561 Surface Mount Magnetic Door Alarm Contact - 10 Pack
uxcell Magnetic Sensor Home Door Window Entry Warning Switch: Reed Switch: Amazon.com: Tools & Home Improvement
12V 24V Electric Magnetic Door Contact Alarm Switch - China Magnetic Door Alarm Switch and Door Open Switch
TANE Wired Side Lead Surface Mount Magnetic Contact BROWN Color Alarm Window Security Magnetic Door Switch Magnetic Contact Switch Reed Switch Normally Open + UL Listed FM-102-BR - FPC Security
GE Battery Operated Magnetic Window and Door Alarm (2-Pack) 45115 - The Home Depot
10 Pack Magnetic Alarm Contact Switch, Window / Door Sensor, Surface Mount
945WH-M - Alarm Magnet (for Any Non-Recessed Resideo Honeywell Home Wireless Door/Window Alarm Contact)
Open Window Slim Magnet for Ring Alarm | Smart Home Security Accessories | Ring
Medline Advantage Magnetic Alarm - Safeway Medical Supply
Sensaphone Magnetic Reed Switch 0006 - The Home Depot
TECHKO Wireless Magnetic Sensor Alarm S283 - The Home Depot
Honeywell 945T - Mini Surface Mount Magnetic Contact with Screw Terminals - Alarm Grid
Honeywell 943WG - Mini Magnetic Contact - Alarm Grid
Magnetic Sensor Alarm – Techko Group
Amazon.com : 5 SetsNC NO Magnetic Contact Switch Door Sensor Wired Metal Roller Shutter Door Home Alarm System/Magnetic Door Switch/Magnetic Contact : Electronics
Honeywell 5899B - Small Magnet for Wireless Door and Window Contacts - Alarm Grid
Anti Theft Burglar Alarm with Remote, Wireless Window and Door Open Entry Alert Magnetic Contact Sensor Battery Operated Loud 130dB Siren for Home Security, Business, Kids Safety, Pool Entrance
Amazon.com: Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC with Adjustable Bracket : Tools & Home Improvement
Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch | eBay
Door Window Magnetic Sensor Home Security Alarm with 3 Wireless Remote Control | eBay