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: 9901-05-20 - Reed Relay, SPST-NO, 5 VDC, 9900 Series, SMD, 150 ohm, 250 mA, (Pack of 5) : Industrial & Scientific
Amazon.com: Mxfans AC220V N.O. Door Reed Switch Magnetic Proximity Contact Surface Mount Wired Door Window Contact Sensor White : 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: 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: Dairzitv MC-31 Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White 10pcs : 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: uxcell Wired Door Contact Window Sensor NO NC Surface Mount Magnetic Reed Switch Brown 3 Pcs : Electronics
Amazon.com: Dairzitv MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White 10 Pair : Tools & Home Improvement
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications OC-55 : Tools & Home Improvement
Amazon.com: Dairzitv MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White 10 Pair : Tools & Home Improvement
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 12V 24V Light : Industrial & Scientific
Amazon.com: UHPPOTE Normal Closed Wired Screw-Terminal Surface-Mount Magnetic Contact for Window Door Security (Pack of 10) : Tools & Home Improvement
Amazon.com: uxcell MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White 2pcs : Industrial & Scientific
Amazon.com: uxcell Wired Door Contact Window Sensor NO NC Surface Mount Magnetic Reed Switch Black 3 Pcs : 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: uxcell Wired Door Contact Window Sensor NC Surface Mount Magnetic Reed Switch Brown 3 Pcs : Tools & Home Improvement
Amazon.com : MC-32 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White - (6 Sets) : Electronics
Amazon.com: BNYZWOT MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White 10 Pair : Industrial & Scientific
VictorsHome Magnetic Reed Switch NO Surface Mount Wired Door Window Contact Sensor with Adhesive Paper for Home Security and Burglar Alarm Systems MC-38 5pcs: Amazon.com: Industrial & Scientific
Amazon.com: uxcell MC-31 Surface Mount Wired NO+NC Door Contact Sensor Alarm Magnetic Reed Switch White : Industrial & Scientific
Amazon.com: Reed Switch Set, Closed Loop, Flanged Miniature Surface Mount Magnetic Switch w/Cable Leads - 10 Pack - Standard Gap Up to 1" 12" 22AWG Leads : Everything Else
Amazon.com : Fielect MC-44b Surface Mount Wired NC Door Contact Sensor Alarm Magnetic Reed Switch White : 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
