![Amazon.com : Fielect 2pcs MC-31 Surface Mount Wired N.C. Door Contact Sensor Alarm Magnetic Reed Switch White : Electronics Amazon.com : Fielect 2pcs MC-31 Surface Mount Wired N.C. Door Contact Sensor Alarm Magnetic Reed Switch White : Electronics](https://m.media-amazon.com/images/I/31mQnLSd2GL._AC_SY580_.jpg)
Amazon.com : Fielect 2pcs MC-31 Surface Mount Wired N.C. Door Contact Sensor Alarm Magnetic Reed Switch White : Electronics
![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: 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](https://m.media-amazon.com/images/I/51jzh1hQ5CL.jpg)
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
![Buy SMD NC Type Door Window Contact Magnetic Reed Switch Alarm Security 15-25mm Online at Low Prices in India - Amazon.in Buy SMD NC Type Door Window Contact Magnetic Reed Switch Alarm Security 15-25mm Online at Low Prices in India - Amazon.in](https://m.media-amazon.com/images/I/31S2Il5-WJL.jpg)
Buy SMD NC Type Door Window Contact Magnetic Reed Switch Alarm Security 15-25mm Online at Low Prices in India - Amazon.in
![Amazon.com: uxcell MC-31 Surface Mount Wired NO+NC Door Contact Sensor Alarm Magnetic Reed Switch White : Industrial & Scientific Amazon.com: uxcell MC-31 Surface Mount Wired NO+NC Door Contact Sensor Alarm Magnetic Reed Switch White : Industrial & Scientific](https://m.media-amazon.com/images/I/31sVjvsd13L._AC_SY580_.jpg)
Amazon.com: uxcell MC-31 Surface Mount Wired NO+NC Door Contact Sensor Alarm Magnetic Reed Switch White : Industrial & Scientific
![Amazon.com: uxcell Wired Door Contact Window Sensor NO NC Surface Mount Magnetic Reed Switch Black 3 Pcs : Electronics Amazon.com: uxcell Wired Door Contact Window Sensor NO NC Surface Mount Magnetic Reed Switch Black 3 Pcs : Electronics](https://m.media-amazon.com/images/I/41qDCxJXuNS._AC_SY580_.jpg)
Amazon.com: uxcell Wired Door Contact Window Sensor NO NC Surface Mount Magnetic Reed Switch Black 3 Pcs : Electronics
![Amazon.com: uxcell Wired Door Contact Window Sensor NO Surface Mount Magnetic Reed Switch Black : Tools & Home Improvement Amazon.com: uxcell Wired Door Contact Window Sensor NO Surface Mount Magnetic Reed Switch Black : Tools & Home Improvement](https://m.media-amazon.com/images/I/31LPqr+hmDS._AC_SY580_.jpg)
Amazon.com: uxcell Wired Door Contact Window Sensor NO Surface Mount Magnetic Reed Switch Black : Tools & Home Improvement
![Aoje-Link 4pcs RC-31 Surface Mount Wired NO Normally Open Door Contact Sensor Alarm Magnetic Reed Switch White for Gate Garage Window Door Security System : Buy Online at Best Price in KSA - Aoje-Link 4pcs RC-31 Surface Mount Wired NO Normally Open Door Contact Sensor Alarm Magnetic Reed Switch White for Gate Garage Window Door Security System : Buy Online at Best Price in KSA -](https://m.media-amazon.com/images/I/41IUVs6DZlL._AC_SY1000_.jpg)
Aoje-Link 4pcs RC-31 Surface Mount Wired NO Normally Open Door Contact Sensor Alarm Magnetic Reed Switch White for Gate Garage Window Door Security System : Buy Online at Best Price in KSA -
![Amazon.com: 2X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,DC 3V to 12v Lamp(White) : 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 3V to 12v Lamp(White) : Industrial & Scientific](https://m.media-amazon.com/images/I/31eOZObLttL._AC_.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 3V to 12v Lamp(White) : Industrial & Scientific
![Amazon.com: uxcell Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Industrial & Scientific Amazon.com: uxcell Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Industrial & Scientific](https://m.media-amazon.com/images/I/31wx8DM6WTL._AC_.jpg)
Amazon.com: uxcell Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Industrial & Scientific
![Amazon.com: BNYZWOT MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 5 Pair : Industrial & Scientific Amazon.com: BNYZWOT MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 5 Pair : Industrial & Scientific](https://m.media-amazon.com/images/I/31dIVP51cQL._AC_SY580_.jpg)
Amazon.com: BNYZWOT MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 5 Pair : Industrial & Scientific
![Amazon.com: uxcell Wired Door Contact Window Sensor NC Surface Mount Magnetic Reed Switch Black : Tools & Home Improvement Amazon.com: uxcell Wired Door Contact Window Sensor NC Surface Mount Magnetic Reed Switch Black : Tools & Home Improvement](https://m.media-amazon.com/images/I/61rzyj6QdnS.jpg)
Amazon.com: uxcell Wired Door Contact Window Sensor NC Surface Mount Magnetic Reed Switch Black : Tools & Home Improvement
![Amazon.com: HiLetgo 5pcs Glass Seal Reed Switch Normal Close Magnetic Induction Switch Electromagnetic Normal Close Reed Switch N/C SPDT 2.0x14mm for Arduino : Industrial & Scientific Amazon.com: HiLetgo 5pcs Glass Seal Reed Switch Normal Close Magnetic Induction Switch Electromagnetic Normal Close Reed Switch N/C SPDT 2.0x14mm for Arduino : Industrial & Scientific](https://m.media-amazon.com/images/I/41iHXE+iwLL._AC_.jpg)
Amazon.com: HiLetgo 5pcs Glass Seal Reed Switch Normal Close Magnetic Induction Switch Electromagnetic Normal Close Reed Switch N/C SPDT 2.0x14mm for Arduino : Industrial & Scientific
![Amazon.com: Mxfans N.O. Door Reed Switch Magnetic Proximity Contact Surface Mount Wired Door Window Contact Sensor White : Tools & Home Improvement Amazon.com: Mxfans N.O. Door Reed Switch Magnetic Proximity Contact Surface Mount Wired Door Window Contact Sensor White : Tools & Home Improvement](https://m.media-amazon.com/images/I/31Z1xNHQdbL._AC_SY1000_.jpg)
Amazon.com: Mxfans N.O. Door Reed Switch Magnetic Proximity Contact Surface Mount Wired Door Window Contact Sensor White : Tools & Home Improvement
![Amazon.com : Tane GP-23-WH-PK5 Pack of 5 Wired Surface Mount Magnetic Door Window Contact Switch with Hidden Wires + Screws White Color Reed Switch Alarm Security, Home Security, Burglar Alarm Systems + Amazon.com : Tane GP-23-WH-PK5 Pack of 5 Wired Surface Mount Magnetic Door Window Contact Switch with Hidden Wires + Screws White Color Reed Switch Alarm Security, Home Security, Burglar Alarm Systems +](https://m.media-amazon.com/images/I/41VVn9jUr4L._AC_SY580_.jpg)
Amazon.com : Tane GP-23-WH-PK5 Pack of 5 Wired Surface Mount Magnetic Door Window Contact Switch with Hidden Wires + Screws White Color Reed Switch Alarm Security, Home Security, Burglar Alarm Systems +
![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: 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](https://m.media-amazon.com/images/I/31w6gydR-WL._AC_SY1000_.jpg)
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: uxcell 3pcs MC-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White : Industrial & Scientific Amazon.com: uxcell 3pcs MC-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White : Industrial & Scientific](https://m.media-amazon.com/images/I/41HyAr21JZL._AC_.jpg)
Amazon.com: uxcell 3pcs MC-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White : Industrial & Scientific
![sourcing map Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Amazon.co.uk: DIY & Tools sourcing map Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/I/51QT4W08EjL._AC_SY355_.jpg)
sourcing map Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Amazon.co.uk: DIY & Tools
![Amazon.com: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Closed Magnetic Induction Switch with 20pcs Small Multi-Use Round Magnets : Industrial & Scientific Amazon.com: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Closed Magnetic Induction Switch with 20pcs Small Multi-Use Round Magnets : Industrial & Scientific](https://m.media-amazon.com/images/I/61QTgUo6AfL.jpg)
Amazon.com: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Closed Magnetic Induction Switch with 20pcs Small Multi-Use Round Magnets : Industrial & Scientific
![Amazon.com: uxcell Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Industrial & Scientific Amazon.com: uxcell Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Industrial & Scientific](https://m.media-amazon.com/images/I/51DM+3ZbEuL.jpg)
Amazon.com: uxcell Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38 : Industrial & Scientific
![Amazon.com: Dairzitv MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 5 Pair : Industrial & Scientific Amazon.com: Dairzitv MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 5 Pair : Industrial & Scientific](https://m.media-amazon.com/images/I/51Cn+vs7vsL.jpg)
Amazon.com: Dairzitv MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 5 Pair : Industrial & Scientific
![Fielect 2pcs MC-38 Surface Mount Wired N.C Door Sensor Alarm Magnetic Reed Switch White : Amazon.ca: Tools & Home Improvement Fielect 2pcs MC-38 Surface Mount Wired N.C Door Sensor Alarm Magnetic Reed Switch White : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/51UV6cAXHUL._SX342_.jpg)
Fielect 2pcs MC-38 Surface Mount Wired N.C Door Sensor Alarm Magnetic Reed Switch White : Amazon.ca: Tools & Home Improvement
![Amazon.com: Reed Switch MC-51 NC/NO Surface Mount Wired Door and Window Alarm, Ferromagnetic Door Switch, Contact Sensor for Home Security and Garage Door Burglar Alarm Reed Switch, Set of 1 : Industrial Amazon.com: Reed Switch MC-51 NC/NO Surface Mount Wired Door and Window Alarm, Ferromagnetic Door Switch, Contact Sensor for Home Security and Garage Door Burglar Alarm Reed Switch, Set of 1 : Industrial](https://m.media-amazon.com/images/I/61U7u-nWjaL.jpg)