Kaymac Posted January 8, 2007 Share Posted January 8, 2007 Hello there I am looking for information on the melcom st6550 alarm Firstly looking for a way to program a new entry code as the current code has been lost and the user manual Link to comment https://www.thesecurityinstaller.co.uk/community/topic/14916-melcom-st6550/ Share on other sites More sharing options...
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