Especially things like those. If you can give me evidence they are properly set up, working, and compliant with all applicable advice and regulations, that's gr

Especially things like those. If you can give me evidence they are properly set up, working, and compliant with all applicable advice and regulations, that's great, I'll be happy to have them. Otherwise, get rid of them, and I'll get my own properly fitted by a suitably qualified professional, thanks. Those things save lives, and I'm not going to cut corners to save a few bucks, only to find that your hack job installer didn't connect them to repeat alarms properly throughout the building, or you used some trendy junk that doesn't actually work reliably if the power goes out, Internet is down, or some other dumb thing that should have nothing at all to do with safety systems ever.