Magnetic Door Contact Sensor/Magnetic Proximity Switch (Overhead Roller Shutter) | Parts, Components & Electrical Supplies | Electronics
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Wired Garage Metal Roller Shutter Street Factory Gate Door Sensor Detector Magnetic Contact Switch(NORMALLY CLOSED) - AliExpress
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4 WIRE ROLLER SHUTTER CONTACT Sensors Proximity - 4 WIRE ROLLER SHUTTER CONTACT, Sensing Distance Max: 70mm : Amazon.co.uk: DIY & Tools
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Magnetic Proximity Sensor Door Switch for Roller Shutter Door - China Proximity Sensor Switch, Proximity Switch | Made-in-China.com
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