Amazon.com: Gebildet 20pcs Glass Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (2mm×14mm) with 20pcs Multi-Use Magnetic Sheet : Industrial & Scientific
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.C. Applications OC-60 2Set : Electronics
Gebildet 10pcs 3 Pin SPDT Glass Reed Switch Reed Contact Normally Open N/O N/C, Glass Reed Relay Magnetic Induction Switch(2.5mm×14mm) + 20pcs Magnet Piece
Amazon.com: Megatronix MGT Magnetic Reed Switch Alarm Security Sensor Normally Open (N/O) / Normally Closed (N/C) : Automotive
Amazon.com : Dahszhi Home Security Wired Rolling Door Contact Magnetic Reed Switch Alarm : Electronics
Gebildet 10pcs 4W 3 Pin Reed Switch Reed Contact Normally Open N/O N/C SPDT, Glass
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)
Amazon.com: Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Open (N/O) Magnetic Induction Switch (2.5mm×14mm) with 20pcs Small Multi-Use Round Magnets : Industrial & Scientific
Amazon.com : VictorsHome Magnetic Reed Switch RC-33 NO Recessed Wired Window Door Contact Sensor for Home Security and Burglar Alarm Systems 5 Pcs : Electronics
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications MC-58 2Set : 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: QWORK MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 10 with 40 Screws : Industrial & Scientific
DIYhz Reed Switch GPS-14A 14mm Plastic Anti-Interference Normally Open Magnetic Control Switch 10PCS
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: Magnetic Switch A Pair Normally Closed Door Window Reed Switch Metal Housing Micro Alarm Magnetic Contact Security for Metal Door Window : Industrial & Scientific
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.O. Applications MC-56 : Industrial & Scientific
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications OC-60 : 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
Philmore N.O./N.C. Magnetic Reed Switch, SPDT : 30-10072 (1)
Amazon.com: uxcell Rolling Door Contact Magnetic Reed Switch Alarm with 3 Wires for N.O./N.C. Applications MC-52 : Electronics
QWORK Wired Alarm Magnetic Garage Door Contact Switch Sensor, Home Security Wired Contact Magnetic Reed Switch Alarm with Adjustable Bracket
Amazon.com: Reed Switch and Magnet Assembly : Industrial & Scientific
Amazon.com: Xiaoyztan 5 Sets Recessed Wired Magnet Reed Switch Window Door Magnetic Contact Sensor Alarm for Office Home Security System : Electronics
10Pcs RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White
Amazon.com : VictorsHome Magnetic Reed Switch RC-36 NC Recessed Wired Window Door Contact Sensor for Home Security and Burglar Alarm Systems 5 Pcs : Electronics
