can you put speed bumps on a easement?
carbon monoxide is heavier than air it falls and most gas stoves made in the last 20 years have electric pilot lights on them
1 needs battery's 2 is smoke or some sort of stench 3 some one tampered with it .
replace them and see if they do the same or stay quiet. today my tv cut itself off and i had the remote on the table in it's case so, no way i could cut it off. also my tv changes channels. it could be in sinc with the neighbors remote and so could your alarms or i hate to say this but you got a ghost .but on a more rational note it just may be the wiring.