Amazon.com: QWORK MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 10 with 40 Screws : Industrial & Scientific
Amazon.com: uxcell N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-36 2pcs : Tools & Home Improvement
Amazon.com: PATIKIL Garage Door Magnetic Contacts Switch, NO Wired Magnetic Reed Switch Open Sensor with Adjustable Bracket for Garage Door, Rolling Door : Tools & Home Improvement
Amazon.com : VictorsHome Magnetic Reed Switch RC-36 NC Recessed Wired Window Door Contact Sensor for Home Security and Burglar Alarm Systems 10 Pcs : Electronics
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.C. Applications OC-55 : Tools & Home Improvement
Amazon.com : VictorsHome Magnetic Reed Switch RC-33 NC Recessed Wired Window Door Contact Sensor for Home Security and Burglar Alarm Systems 10 Pcs : Electronics
Amazon.com: 2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch, DC 5Vto12V Light (Black) : Industrial & Scientific
Amazon.com: Gebildet 10pcs 4W 3 Pin Reed Switch Reed Contact Normally Open N/O N/C SPDT, Glass Reed Relay Magnetic Induction Switch (2.5mm x 14mm) : Industrial & Scientific
Amazon.com : VictorsHome Magnetic Reed Switch RC-36 NC Recessed Wired Window Door Contact Sensor for Home Security and Burglar Alarm Systems 5 Pcs : Electronics
Amazon.com: VictorsHome Magnetic Reed Switch NC Surface Mount Wired Door Window Contact Sensor with Adhesive Paper for Home Security and Burglar Alarm Systems MC-38 5pcs : Electronics
Amazon.com: 3X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,to DC 5V Light : Industrial & Scientific
Amazon.com: PATIKIL Magnetic Reed Switch, 4 Sets NC Surface-Mounted Magnetic Contact Switch Sensor for Door Window, White : Industrial & Scientific
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications MC-52 : Electronics
Amazon.com : VictorsHome Magnetic Reed Switch RC-33 NO Recessed Wired Window Door Contact Sensor for Home Security and Burglar Alarm Systems 5 Pcs : Electronics
Amazon.com: Aoje-Link 2Sets RC-31 Magnetic Reed Switch Normally Open Closed NC + NO Door Alarm Window Security, Magnetic Door Switch, Magnetic Contact Switch : Industrial & Scientific
Amazon.com: Magnetic Reed Switch MC-31 NC Surface Mount Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 2 : Industrial & Scientific
Amazon.com: Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch : Industrial & Scientific
Amazon.com: WOWOONE 5pcs Plastic Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (2.5mm×14mm) with 10pcs Small Multi-Use Round Magnets : Industrial & Scientific
Amazon.com: 3 Wire Rolling Door Magnetic Reed Switch Alarm for NO/NC Applications OC-55 FUERLI : Sports & Outdoors
Amazon.com: 5Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light (Black-B31) : Industrial & Scientific
Amazon.com: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (2.5mm×14mm) with 10pcs Small Multi-Use Round Magnets : Industrial & Scientific
Amazon.com: Magnetic Reed Switch RC-36 NC Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 5 (Brown) : Industrial & Scientific
Amazon.com: Portable Magnetic Reed Switch, Magnetic Door Switch, Lightweight Reliable Premium for Window Metal Door : Industrial & Scientific
Amazon.com: PATIKIL Magnetic Reed Switch, 2 Sets Normally Open Closed NC NO Wired Surface-Mounted Garage Door Window Contact Switch : Industrial & Scientific
