Its not like the government havent published the RRO https://www.gov.uk/government/publications/regulatory-reform-fire-safety-order-2005-guidance-note-enforcement
Yep lack of common sense, I now understand what my auditor was coming from when he asked if my staff had recieved training on the stuff kept under the sink at work. Theres me thinking everyone knows not to drink or rub that shit over your nuts, but it would seem not everyone has common sense.
Its the battery that kills them. So without a battery is fin, but when you replace the sounder you will need a battery, otherwise you wont be popular in a power cut.
Couple of used 20 year old keypads that wont be much better than the one you have. I know its easier to just replace the keypad, but I think you could end up exactly where you are now after you have replaced it, only a bit poorer
I wont make a penny from giving you advice, the time I spend on here is given up for free. Its not just old though its been powered up and running for the last 15/20 years