Best smoke alarm on the planet. I have had clients put these in a number of houses that were getting false alarms all the time. Now they have none. In houses where alarms had been ripped out of the ceilings because of false alarms, now the alarms stay put, changing an unprotected house into a safe one. In my own house we had problems every week: humid days, neighbor firing up his wood boiler, dinner being ready, etc. Now we have no problems at all.
Plus, I don't have to run around the house looking for a flashing light that tells me which unit is causing the alarm. A push of the button, on ANY alarm will cause only the offending alarm to beep, making it easy to find. This detector also solves the problem of alarms that are out of reach, as I can silence that alarm from one that is mounted at a more convenient height.
Their website says this alarm, according to a university study, is the fastest responding alarm out there to detect fast flaming fires, which you would get an ionization alarm for. It responds 87% faster (than required?) for slow smoldering fires, which you would get an ionization alarm for. Better than both kinds, and the "Microprocessor Intelligence" might be just a cool way to market it, but it really did eliminate all the false alarms in my home, and my clients' homes.
eliminates false alarms, high-mounted alarms can be silenced remotely