![Amazon.com: Bstinay AC110-220V Door Window Reed Switch Black Normally Open Magnetic Door Contacts Switch : Electronics Amazon.com: Bstinay AC110-220V Door Window Reed Switch Black Normally Open Magnetic Door Contacts Switch : Electronics](https://m.media-amazon.com/images/I/61IWU10jccL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Bstinay AC110-220V Door Window Reed Switch Black Normally Open Magnetic Door Contacts Switch : Electronics
![Amazon.com: SpzcdZa 5Sets 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 : Industrial & Amazon.com: SpzcdZa 5Sets 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 : Industrial &](https://m.media-amazon.com/images/I/51gYgnyB5WL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: SpzcdZa 5Sets 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 : Industrial &
![Amazon.com: BQLZR Cylindrical Plastic Mounted Reed Proximity Switch Magnetic Sensor Pack of 2 : Industrial & Scientific Amazon.com: BQLZR Cylindrical Plastic Mounted Reed Proximity Switch Magnetic Sensor Pack of 2 : Industrial & Scientific](https://m.media-amazon.com/images/I/61H8H9b8wHL._AC_UF894,1000_QL80_.jpg)
Amazon.com: BQLZR Cylindrical Plastic Mounted Reed Proximity Switch Magnetic Sensor Pack of 2 : 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 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: Magnetic Reed Switch,Normally Closed NC Waterproof Magnetic Switch,Micro Alarm Reed Switch 10W 100v 0.5A Magnetic Door Sensor Switch to DC 5V 12V 24V Lights(2 Pack) : Industrial & Scientific Amazon.com: Magnetic Reed Switch,Normally Closed NC Waterproof Magnetic Switch,Micro Alarm Reed Switch 10W 100v 0.5A Magnetic Door Sensor Switch to DC 5V 12V 24V Lights(2 Pack) : Industrial & Scientific](https://m.media-amazon.com/images/I/61vlGhLvTWL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Magnetic Reed Switch,Normally Closed NC Waterproof Magnetic Switch,Micro Alarm Reed Switch 10W 100v 0.5A Magnetic Door Sensor Switch to DC 5V 12V 24V Lights(2 Pack) : Industrial & Scientific
![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: Amazon.com: Industrial & Scientific 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: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51dubFAtc7L._AC_UF1000,1000_QL80_.jpg)
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: Amazon.com: Industrial & Scientific
![Amazon.com: bnafes 4Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light : Industrial & Scientific Amazon.com: bnafes 4Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light : Industrial & Scientific](https://m.media-amazon.com/images/I/517aEU1dMbL._AC_UF894,1000_QL80_.jpg)
Amazon.com: bnafes 4Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light : Industrial & Scientific
![Amazon.com: BNYZWOT 5Sets 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 : Industrial & Amazon.com: BNYZWOT 5Sets 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 : Industrial &](https://m.media-amazon.com/images/I/71vdy8N7IYL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: BNYZWOT 5Sets 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 : Industrial &
![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: uxcell a14061100ux0028 3 Piece NO/NC Door Window Contact Magnetic Reed Switch Alarm Security, 0.91" Width, 13.39" Length : Industrial & Scientific Amazon.com: uxcell a14061100ux0028 3 Piece NO/NC Door Window Contact Magnetic Reed Switch Alarm Security, 0.91" Width, 13.39" Length : Industrial & Scientific](https://m.media-amazon.com/images/I/61Pg310AZrL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: uxcell a14061100ux0028 3 Piece NO/NC Door Window Contact Magnetic Reed Switch Alarm Security, 0.91" Width, 13.39" Length : 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: 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](https://m.media-amazon.com/images/I/51E9MOdtarL._AC_UF894,1000_QL80_.jpg)
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: 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)
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: 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/61bLu9IlgXL._AC_UF1000,1000_QL80_.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 : uxcell N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-33 10pcs : Electronics Amazon.com : uxcell N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-33 10pcs : Electronics](https://m.media-amazon.com/images/I/61oWKv66DjL._AC_UF894,1000_QL80_.jpg)
Amazon.com : uxcell N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-33 10pcs : Electronics
![Amazon.com: Reed Switch Developments Corp, 2060-1301-90K, Magnetic Reed Sensor + Actuator Kit, Plastic, SPST - Form B, 5W 175V 0.25A, Qty: 1 Kit : Industrial & Scientific Amazon.com: Reed Switch Developments Corp, 2060-1301-90K, Magnetic Reed Sensor + Actuator Kit, Plastic, SPST - Form B, 5W 175V 0.25A, Qty: 1 Kit : Industrial & Scientific](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71m-b2ZvTkL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Reed Switch Developments Corp, 2060-1301-90K, Magnetic Reed Sensor + Actuator Kit, Plastic, SPST - Form B, 5W 175V 0.25A, Qty: 1 Kit : Industrial & Scientific
![Amazon.com: Gebildet 20pcs Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (2mm*14mm) : Industrial & Scientific Amazon.com: Gebildet 20pcs Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (2mm*14mm) : Industrial & Scientific](https://m.media-amazon.com/images/I/61cmgeV-tFL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Gebildet 20pcs Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (2mm*14mm) : Industrial & Scientific
![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: 2 PCS Magnetic Contact Switch, Icstation Magnetic Reed Switch Normally Open Door Reed Switch MC-38 Wired Security Window Door Contact Sensor Alarm : Electronics Amazon.com: 2 PCS Magnetic Contact Switch, Icstation Magnetic Reed Switch Normally Open Door Reed Switch MC-38 Wired Security Window Door Contact Sensor Alarm : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/515W18M6uzL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 2 PCS Magnetic Contact Switch, Icstation Magnetic Reed Switch Normally Open Door Reed Switch MC-38 Wired Security Window Door Contact Sensor Alarm : 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: 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](https://m.media-amazon.com/images/I/51uuRZCY5SL._AC_UF894,1000_QL80_.jpg)
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: 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: QWORK MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 10 with 40 Screws : Industrial & Scientific](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61ZyAelqRKL._AC_UF1000,1000_QL80_.jpg)
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: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (3mm×14mm) : Industrial & Scientific Amazon.com: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (3mm×14mm) : Industrial & Scientific](https://m.media-amazon.com/images/I/61BRKNgYMsL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (3mm×14mm) : Industrial & Scientific
![Amazon.com: Magnetic Reed Switch NC/NO Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 5 Amazon.com: Magnetic Reed Switch NC/NO Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 5](https://m.media-amazon.com/images/I/61ytEE2Km1L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Magnetic Reed Switch NC/NO Recessed Wired Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 5
![Amazon.com: Reed Switch Developments Corp, 2005-1965-100, Magnetic Reed Sensor, Plastic, SPST - Form A, 40W, 400V, 2 Amp, Qty: 1 : Industrial & Scientific Amazon.com: Reed Switch Developments Corp, 2005-1965-100, Magnetic Reed Sensor, Plastic, SPST - Form A, 40W, 400V, 2 Amp, Qty: 1 : Industrial & Scientific](https://m.media-amazon.com/images/I/71hAkdQDYAL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Reed Switch Developments Corp, 2005-1965-100, Magnetic Reed Sensor, Plastic, SPST - Form A, 40W, 400V, 2 Amp, Qty: 1 : Industrial & Scientific
![Amazon.com: Reed Switch Developments AM2060-1900-90-01 2060-1900-900, Reed Switch/Sensor, Plastic, SPST - Form B, 20W, 150V, 1 Amp : Industrial & Scientific Amazon.com: Reed Switch Developments AM2060-1900-90-01 2060-1900-900, Reed Switch/Sensor, Plastic, SPST - Form B, 20W, 150V, 1 Amp : Industrial & Scientific](https://m.media-amazon.com/images/I/612RSWzLklL._AC_UF1000,1000_QL80_.jpg)