Looks like your typical household security system. Word of advise from someone who was once in the home security industry… Make sure he doesn’t get roped into those free or reduced cost systems. The monthly monitoring will cost you DOUBLE what it will cost if you just went with a small local company who does alarms and paid outright for the system. Monthly monitoring should be around $20 a month with no contract. Aye Dee Tee for instance will charge someone $35+ a month plus commit them to a 3 year contract. But that’s just my opinion…
Also, I thought I remember them not recommending mounting smoke detectors in the corners like that. Something about them being in a dead zone? But can’t find that information, maybe they changed it. But when you leave it to an electrician to install life safety devices…