Just replaced all smokes with new batteries. 

the ones with the biggest battery your probably only stopping 3 times.    

Does not need or use a landline, has a cellular connection with battery backup, $15/month monitoring that you can turn on and off.

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I am planning on having nice amenities such as having a trickle charger for the batteries, complete video recorded (stored in the cloud) security, airport pick-up, and detailing.

They run on battery, can see in the dark without detection, and only take pictures/video when motion activated.

Perhaps the battery that transmits the signal is on the fritz and the city is using the wrong number- Obviously pipe burst could be a problem.

It depends on how many batteries you have but yes they net out to about $7K for true daily use batteries.

I'm not just looking at the pay back but the overall impact of my purchase decision socially, economically, and environmentally.To me it is easier to add granite, new cabinets, and latest lighting than to add solar with battery storage, greywater, spray foam insualtion...etc.What do you think?

I don’t know how much you pay people to hang blinds, change furnace filters, change batteries in smoke detectors and do some painting but I’ll give him your contact info since it’s a lot more than I do.