![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 (white-31) : Industrial & Scientific 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 (white-31) : Industrial & Scientific](https://m.media-amazon.com/images/I/61Jx3nQUTfL._AC_UF1000,1000_QL80_.jpg)
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 (white-31) : Industrial & Scientific
![Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications MC-58 : Tools & Home Improvement Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications MC-58 : Tools & Home Improvement](https://m.media-amazon.com/images/S/aplus-media/sc/21773d95-776e-4829-9bdd-de31464aaa59.__CR0,0,970,600_PT0_SX970_V1___.jpg)
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications MC-58 : Tools & Home Improvement
![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: 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](https://m.media-amazon.com/images/I/51-rYaop8UL.jpg)
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
![Wholesale Reed Switch 3 pin Magnetic Reed Switch Normally Open and Normally Closed Conversion 2.5X14mm NO NC From m.alibaba.com Wholesale Reed Switch 3 pin Magnetic Reed Switch Normally Open and Normally Closed Conversion 2.5X14mm NO NC From m.alibaba.com](https://sc04.alicdn.com/kf/H93b294350fe2444cae1876493b8078a4k.jpg)
Wholesale Reed Switch 3 pin Magnetic Reed Switch Normally Open and Normally Closed Conversion 2.5X14mm NO NC From m.alibaba.com
![Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switch - Brown - On Sale - - 35799657 Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switch - Brown - On Sale - - 35799657](https://ak1.ostkcdn.com/images/products/is/images/direct/86d1543e903be9a1e78ef293352521cbebdc679b/Door-Window-NO-NC-Recessed-Security-Contact-Sensor-Alarm-Magnetic-Reed-Switch.jpg)
Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switch - Brown - On Sale - - 35799657
![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: 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](https://m.media-amazon.com/images/I/51-rYaop8UL._AC_UF894,1000_QL80_.jpg)
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
![N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-33 10pcs - Ideal Supply Inc (dba Ideal Blasting Supply) N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-33 10pcs - Ideal Supply Inc (dba Ideal Blasting Supply)](https://cdn11.bigcommerce.com/s-cru6v6697o/images/stencil/1280x1280/products/8636/17013/magneticdoorswitch__62698.1594129297.jpg?c=2)
N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-33 10pcs - Ideal Supply Inc (dba Ideal Blasting Supply)
![2pcs/1pair 31b Magnetic Reed Switch Nc No Combined Door Contact Sensor Wireless Security Switches - Window Door Sensor - AliExpress 2pcs/1pair 31b Magnetic Reed Switch Nc No Combined Door Contact Sensor Wireless Security Switches - Window Door Sensor - AliExpress](https://ae01.alicdn.com/kf/HTB1SIsxajLuK1Rjy0Fhq6xpdFXaB/2pcs-1pair-31B-Magnetic-Reed-Switch-NC-NO-Combined-Door-Contact-Sensor-Wireless-Security-Switches.jpg)
2pcs/1pair 31b Magnetic Reed Switch Nc No Combined Door Contact Sensor Wireless Security Switches - Window Door Sensor - AliExpress
![Contact Magnetic Sensor Reed Switch Alarm | Magnetic Sensor Reed Switch Pneumatics - Window Door Sensor - Aliexpress Contact Magnetic Sensor Reed Switch Alarm | Magnetic Sensor Reed Switch Pneumatics - Window Door Sensor - Aliexpress](https://ae01.alicdn.com/kf/H06fe6034faaf4af9a08caf0b0b34a4024/AC110-220V-2A-NO-or-NC-type-Proximity-Magnetic-Sensor-Reed-Switch-Perfect-High-Speed-Switch.jpg)
Contact Magnetic Sensor Reed Switch Alarm | Magnetic Sensor Reed Switch Pneumatics - Window Door Sensor - Aliexpress
![35-756-BU: GC Electronics : Switch Reed (N.O.-N.C.) 0.0375 Amp 120 Volt AC 80 Volt : Electromechanical 35-756-BU: GC Electronics : Switch Reed (N.O.-N.C.) 0.0375 Amp 120 Volt AC 80 Volt : Electromechanical](https://www.jameco.com/Jameco/Products/MakeImag/617545.jpg)
35-756-BU: GC Electronics : Switch Reed (N.O.-N.C.) 0.0375 Amp 120 Volt AC 80 Volt : Electromechanical
![30-10071 Spdt N.o./n.c. Magnetic Reed Switch (1): Camera And Photography Products: Amazon.com: Tools & Home Improvement 30-10071 Spdt N.o./n.c. Magnetic Reed Switch (1): Camera And Photography Products: Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/31YGfsVq4YL.jpg)
30-10071 Spdt N.o./n.c. Magnetic Reed Switch (1): Camera And Photography Products: Amazon.com: Tools & Home Improvement
![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: 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](https://m.media-amazon.com/images/I/51ZP7e-04RL._AC_UF1000,1000_QL80_.jpg)
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: Magnetic Reed Switch RC-35 NC/NO Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 6 : Industrial & Scientific Amazon.com: Magnetic Reed Switch RC-35 NC/NO Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 6 : Industrial & Scientific](https://m.media-amazon.com/images/I/51dubFAtc7L.jpg)
Amazon.com: Magnetic Reed Switch RC-35 NC/NO Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 6 : Industrial & Scientific
![10 Pcs Reed Switch 3 Pin Magnetic Switch Normally Open And Normally Closed Conversion 2.5x14mm No Nc - Sensors - AliExpress 10 Pcs Reed Switch 3 Pin Magnetic Switch Normally Open And Normally Closed Conversion 2.5x14mm No Nc - Sensors - AliExpress](https://ae01.alicdn.com/kf/HTB1q647JFXXXXc0aXXXq6xXFXXXJ/10-pcs-Reed-Switch-3-pin-Magnetic-Switch-Normally-Open-and-Normally-Closed-Conversion-2-5X14MM.jpg)
10 Pcs Reed Switch 3 Pin Magnetic Switch Normally Open And Normally Closed Conversion 2.5x14mm No Nc - Sensors - AliExpress
![Amazon.com: 2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light : Electronics Amazon.com: 2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light : Electronics](https://m.media-amazon.com/images/I/614t8OR-X2L._AC_UF1000,1000_QL80_.jpg)