Thanks but replacing mine with one of those would require joinery skills plus tools i do not have,mine are the traditional surface mount type.
I will buy some from an electrical store i know of on Monday.
Was hopeing for details on what to do with the alarm but thanks for the info supplied so far,many thanks.
This walk test is mentioned in my user instructions,so i gave it a go last night and had all zones apart from zone 1 showing following the test,so thanks for that.
And yes i did believe you guys but it kind of made sense to try.
Brian Wheatley, February 2014