Re: I tried the smoke & CO2 detector as an experiment, and they don't suck
In multistorey or large houses you need connected alarms as if there is background noise you may not hear the alarm. Connected alarms all go off simultaneously so knowing which one is triggering the alarm is not the trivial act you might think. Not all alarms have disable buttons. Our recent houses have had 2.7m ceilings I can testify that getting an alrm off the ceiling whilst it blasts you in the face with 95dB is not easy or pleasant. Nest have solved all of these problems very neatly, my connected alarms tell me audibly and by app which alarm is going off and if it is smoke, CO or fire. I can silence them whilst they still monitor by app and audible voice by pushing a button using a a broom or similar.
And £240 pound for 7 years piece of mind? I can pony up £35 a year for that.