Leaderboard

If you are not sure where you start you probably shouldn't DIY. It will involve working at height, deafening noises and the possibility of electrocution. There is no magic button or code to disable them, in fully working order they are designed to be tamper proof, triggering the sounders if you mess about. If you are certain you won't want an alarm going forward have someone to decommission it or consider having them look at it regarding servicing or upgrading. They do need regular maintenance to work properly so also consider that if you keep it.

OP please bear in mind few actual professionals agree with what this poster writes