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Use this heavy-duty magnetic garage door contact switch on garage doors, roll-up doors and other doors or gates where it may be difficult to mount regular magnetic contacts. smaller magnetic switches have a small operating gap where the contact and magnet must be within half an inch for reliable operation. while those switches are fine for most doors and windows in a home, they just won't cut ..., overhead door and garage door contacts and sensors for commercial and residential - buy online at aartech canada.
Gri products lines. when our production lines are running so is our quality control team. each and every product manufactured in our plants is fully tested to ensure it meets our zero defect goals. products from george risk industries should be "your choice when reliability matters!" magnetic reed switches & security products