You can just upgrade your existing NAPCO. I did that several years ago and
have been very happy.

Try this web site to help you look at various options:
http://www.bass-home.com/



"Stubby" wrote in message
. ..
Can someone tell me what alarm will be best to replace my old one. The
old system is Napco and the motion detectors must be replaced because they
click when anyone walks passed them. All the wires are up in the attic so
I plan on reusing them. And the central controller, battery backup and
alarm horns can be reused. TIA