![GTIWUNG 15 pieces reed switch plastic reed switch reed contact closer (N/O) magnetic induction switch for Arduino (2.5 mm x 14 mm) : Amazon.de: Business, Industry & Science GTIWUNG 15 pieces reed switch plastic reed switch reed contact closer (N/O) magnetic induction switch for Arduino (2.5 mm x 14 mm) : Amazon.de: Business, Industry & Science](https://m.media-amazon.com/images/I/516-Pwc0NYL._AC_UF1000,1000_QL80_.jpg)
GTIWUNG 15 pieces reed switch plastic reed switch reed contact closer (N/O) magnetic induction switch for Arduino (2.5 mm x 14 mm) : Amazon.de: Business, Industry & Science
![Amazon.com: SpeedDa 6 Sets 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 : Tools Amazon.com: SpeedDa 6 Sets 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 : Tools](https://m.media-amazon.com/images/I/61bSYE5aXgL._AC_UF894,1000_QL80_.jpg)
Amazon.com: SpeedDa 6 Sets 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 : Tools
![Contatto Reed per Porta Contatto Magnetico Sensore per Porte e Finestre Cablato per Allarmi di Sicurezza per Porte, Finestre e Cassetti, Sistema d'allarme : Amazon.it: Fai da te Contatto Reed per Porta Contatto Magnetico Sensore per Porte e Finestre Cablato per Allarmi di Sicurezza per Porte, Finestre e Cassetti, Sistema d'allarme : Amazon.it: Fai da te](https://m.media-amazon.com/images/I/61uvznuYmWS._AC_UF1000,1000_QL80_.jpg)
Contatto Reed per Porta Contatto Magnetico Sensore per Porte e Finestre Cablato per Allarmi di Sicurezza per Porte, Finestre e Cassetti, Sistema d'allarme : Amazon.it: Fai da te
![Gebildet Home Security Wired Rolling Door Contatto Magnetico Interruttore Reed Interruttore Magnetico Con 2 Fili Per,Magnete Near - Connect Circuit, Magnet Away - Break Circuit, Applicazioni MC-58 : Amazon.it: Fai da te Gebildet Home Security Wired Rolling Door Contatto Magnetico Interruttore Reed Interruttore Magnetico Con 2 Fili Per,Magnete Near - Connect Circuit, Magnet Away - Break Circuit, Applicazioni MC-58 : Amazon.it: Fai da te](https://m.media-amazon.com/images/I/516IWMzu5bL._AC_UF1000,1000_QL80_.jpg)
Gebildet Home Security Wired Rolling Door Contatto Magnetico Interruttore Reed Interruttore Magnetico Con 2 Fili Per,Magnete Near - Connect Circuit, Magnet Away - Break Circuit, Applicazioni MC-58 : Amazon.it: Fai da te
![Interruttore magnetico normalmente aperto/chiuso porta/finestra interruttore Reed micro allarme contatto magnetico di sicurezza : Amazon.it: Fai da te Interruttore magnetico normalmente aperto/chiuso porta/finestra interruttore Reed micro allarme contatto magnetico di sicurezza : Amazon.it: Fai da te](https://m.media-amazon.com/images/I/61RbgM2tO0L._AC_UF894,1000_QL80_.jpg)
Interruttore magnetico normalmente aperto/chiuso porta/finestra interruttore Reed micro allarme contatto magnetico di sicurezza : Amazon.it: Fai da te
![Magnetic Door Contact Switch, 5pcs MC-38 Recessed Magnetic Door Switch Alarm Contacts Magnets Contact Reed Switch for Home Security and Burglar Alarm Systems : Amazon.ca: Tools & Home Improvement Magnetic Door Contact Switch, 5pcs MC-38 Recessed Magnetic Door Switch Alarm Contacts Magnets Contact Reed Switch for Home Security and Burglar Alarm Systems : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/61R1jf0G4uL._AC_UF894,1000_QL80_.jpg)
Magnetic Door Contact Switch, 5pcs MC-38 Recessed Magnetic Door Switch Alarm Contacts Magnets Contact Reed Switch for Home Security and Burglar Alarm Systems : Amazon.ca: Tools & Home Improvement
![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 Systems, Sets of 5, White : Tools & Home Improvement 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 Systems, Sets of 5, White : Tools & Home Improvement](https://m.media-amazon.com/images/I/51oAeKP9PkL._AC_UF894,1000_QL80_.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 Systems, Sets of 5, White : Tools & Home Improvement
![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 2: 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 2: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51PQX2OwiIL._AC_UF894,1000_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 2: Amazon.com: Industrial & Scientific
![Amazon.com : RC-35 NC/NO Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch for Office Home Security System, Sets of 5 : Electronics Amazon.com : RC-35 NC/NO Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch for Office Home Security System, Sets of 5 : Electronics](https://m.media-amazon.com/images/I/51MeUZtiyHL._AC_UF894,1000_QL80_.jpg)
Amazon.com : RC-35 NC/NO Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch for Office Home Security System, Sets of 5 : Electronics
![Reed Switch Glass Reed Contact, Reed Contact Closer, Plastic Reed Switch, Glass Reed Switch, Magnetic Induction Switch, (2 mm x 14 mm), Pack of 10 : Amazon.de: Business, Industry & Science Reed Switch Glass Reed Contact, Reed Contact Closer, Plastic Reed Switch, Glass Reed Switch, Magnetic Induction Switch, (2 mm x 14 mm), Pack of 10 : Amazon.de: Business, Industry & Science](https://m.media-amazon.com/images/I/4156mIWn5BL._AC_UF894,1000_QL80_.jpg)
Reed Switch Glass Reed Contact, Reed Contact Closer, Plastic Reed Switch, Glass Reed Switch, Magnetic Induction Switch, (2 mm x 14 mm), Pack of 10 : Amazon.de: Business, Industry & Science
![Amazon.com: MC-32 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White - (6 Sets) : Tools & Home Improvement Amazon.com: MC-32 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White - (6 Sets) : Tools & Home Improvement](https://m.media-amazon.com/images/I/61IVtA1LHQL._AC_UF894,1000_QL80_.jpg)
Amazon.com: MC-32 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White - (6 Sets) : 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
![Gebildet Home Security Wired Rolling Door Contact 0~100V/0.5Amp Magnetic Reed Switch With 2 Wires For,Magnet Near - Connect Circuit, Magnet Away - Break Circuit,Applications MC-51 : Amazon.co.uk: Business, Industry & Science Gebildet Home Security Wired Rolling Door Contact 0~100V/0.5Amp Magnetic Reed Switch With 2 Wires For,Magnet Near - Connect Circuit, Magnet Away - Break Circuit,Applications MC-51 : Amazon.co.uk: Business, Industry & Science](https://m.media-amazon.com/images/I/51pUoXY5WQL._AC_UF894,1000_QL80_.jpg)
Gebildet Home Security Wired Rolling Door Contact 0~100V/0.5Amp Magnetic Reed Switch With 2 Wires For,Magnet Near - Connect Circuit, Magnet Away - Break Circuit,Applications MC-51 : Amazon.co.uk: Business, Industry & Science
![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: VictorsHome Magnetic Reed Switch NC Surface Mount Wired Door Window Contact Sensor with Cover for Home Security and Burglar Alarm Systems MC-31 5pcs : Electronics Amazon.com: VictorsHome Magnetic Reed Switch NC Surface Mount Wired Door Window Contact Sensor with Cover for Home Security and Burglar Alarm Systems MC-31 5pcs : Electronics](https://m.media-amazon.com/images/I/51-nd+-RmRS.jpg)
Amazon.com: VictorsHome Magnetic Reed Switch NC Surface Mount Wired Door Window Contact Sensor with Cover for Home Security and Burglar Alarm Systems MC-31 5pcs : Electronics
![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: 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](https://m.media-amazon.com/images/I/61AQAFqiLgL._AC_UF894,1000_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 (Black-B31) : Industrial & Scientific
![Amazon.com: 5X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,to DC 5V. Light (white-m38-5pcs) : Industrial & Scientific Amazon.com: 5X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,to DC 5V. Light (white-m38-5pcs) : Industrial & Scientific](https://m.media-amazon.com/images/I/516ikp2p3nL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 5X Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch,to DC 5V. Light (white-m38-5pcs) : Industrial & Scientific
![Amazon.com: QMseller Recessed Security Alarm Contacts Door Window Sensor Magnetic Reed Switch White 4Pcs : Tools & Home Improvement Amazon.com: QMseller Recessed Security Alarm Contacts Door Window Sensor Magnetic Reed Switch White 4Pcs : Tools & Home Improvement](https://m.media-amazon.com/images/I/51Zy76qXmRL._AC_UF894,1000_QL80_.jpg)
Amazon.com: QMseller Recessed Security Alarm Contacts Door Window Sensor Magnetic Reed Switch White 4Pcs : Tools & Home Improvement
![QUCUMER 20 Pcs Reed Switch, Reed Contact Normally Open (N/O) Magnetic Induction Switch Magnetic Reed Switch Glass Reed Switch with Multi-Use Magnetic sheet for Low Power Applications (2mm*14mm) : Amazon.co.uk: Business, Industry QUCUMER 20 Pcs Reed Switch, Reed Contact Normally Open (N/O) Magnetic Induction Switch Magnetic Reed Switch Glass Reed Switch with Multi-Use Magnetic sheet for Low Power Applications (2mm*14mm) : Amazon.co.uk: Business, Industry](https://m.media-amazon.com/images/I/61WQcbp0VBL._AC_UF1000,1000_QL80_.jpg)
QUCUMER 20 Pcs Reed Switch, Reed Contact Normally Open (N/O) Magnetic Induction Switch Magnetic Reed Switch Glass Reed Switch with Multi-Use Magnetic sheet for Low Power Applications (2mm*14mm) : Amazon.co.uk: Business, Industry
![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: 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](https://m.media-amazon.com/images/I/61EY3U4W5kL._AC_UF894,1000_QL80_.jpg)
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: 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/41klmcOdtVL._AC_UF894,1000_QL80_.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
![Reed Switch Glass Reed Contact, Reed Contact Closer, Plastic Reed Switch, Glass Reed Switch, Magnetic Induction Switch, (2 mm x 14 mm), Pack of 10 : Amazon.de: Business, Industry & Science Reed Switch Glass Reed Contact, Reed Contact Closer, Plastic Reed Switch, Glass Reed Switch, Magnetic Induction Switch, (2 mm x 14 mm), Pack of 10 : Amazon.de: Business, Industry & Science](https://m.media-amazon.com/images/I/51YbBxCwCfL._AC_UF894,1000_QL80_.jpg)