vedard Posted November 10, 2011 Share Posted November 10, 2011 It is a mechanic window contact. I'v never seen it. But wondering why not use a magnetic switch? Link to comment https://www.thesecurityinstaller.co.uk/community/topic/32194-one-for-the-old-school-crew/page/2/#findComment-278564 Share on other sites More sharing options...
james.wilson Posted November 10, 2011 Share Posted November 10, 2011 A magnetic switch would not detect entry through the glass securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment https://www.thesecurityinstaller.co.uk/community/topic/32194-one-for-the-old-school-crew/page/2/#findComment-278579 Share on other sites More sharing options...
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