I had once bought all of the stuff to fully alarm our house. It could be monitored or not, but the website is gone now.
These are the parts that I bought. I suspect you can still find the parts on the 'Net.
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa
SOLD 2004 - gone but not forgotten