In message , tony sayer
writes
I too read the wired vs wireless debates and concluded that unless you
really want the home automation type features it was just sour grapes
from "professional" alarm installers losing their "bread and butter"
income for both install and yearly "services".

Well as a radio comms and broadcast engineer I wonder why I have most
everything here wired rather than "Wireless"?..

The main problem is that these devices operate in licence exempt
frequency bands and several devices and other equipment's share
frequencies and channels . OK if you live in the middle of nowhere but
even in this somewhat secluded area I can "see" no less than 12 wi-fi
nets here, only half of them secured properly!..

Just make sure that the wireless alarm doesn't use the 433MHz allocation
- especially if you have a radio amateur in the neighbourhood who might
use the 70cm amateur band.
--
Ian