Well you would be surprised if you got a whole load for free from somewhere £15 is good , £10 on each item
Or
Sell at cost to get rid of because your sticking different version???
so where is the RF portal situated and smokes in comparison and what portal and protocol is everything set to if everything is close by
Also what message do you get on full set, I blagging this as usual but keeps us out of trouble while a real galaxy man gets here
You assumed zone 4 is patio doors by searching online
A zone could be any device in any zone
Ascertain how many sensors you have trigger them one at a time on walk test and tick off each one , you may find magnetic sensors on doors in the frames or on the surface , to try and narrow down what and where your looking for it
Got no idea , I was just commenting on another comment ,
Reality check you have all the answers above so need to make choices choices , always means spending money lol
I meant the device not the aerial , some devices work off a buss like the webway and so , and you can mount it away from the panel but these cards you can't