simonmason
Member
Does anyone know what the difference is? I have a Caddx panel and have some NX-455's installed. I want to add a few more and I found used NX-454's which look similar but I can't find any documentation. Cost is a fraction of the new NX-455 and these are not for doors that I worry about a lot - more interested in knowing if they are open or not. Thanks.
