I once saw a new build house where every detector was just powered, set the alarm.....
walk into every room, nowt happens apart from the little red leds coming on ?
youngest 9600 is going to 25 year old, how many 20year phones, tellys ect... do you see ?
no there are selling a house, the solicitors & surveyors are the ones which start ask what stuff works & what doesn't
I regularly get orders to get service or repair alarms before they complete the sale of property