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CQR's range of magnetic surface contacts and other magnetic contacts are known throughout the security industry for the quality. The Multi contacts come with selectable resistors to allow installers to stock one contact that can be used with any panel. Many of the contacts have been independently certified to meet EN50131 grade 2 and grade 3, so you can be confident in using them.
Name : CQR SC550 Magnetic Contact - SPST (N.O.) - 30 mm Gap - For Double Door - Surface Mount - White, CQR Fire & Security, ADI UK, CQR