I had to install smoke/CO detectors with non-removable batteries before selling my condo in CA.

Running out of batteries means that I have to take a trip out to the unit, and I hate taking trips out to my units.

They use a battery for backup, but if it beeps and they remove the battery guess what happens?

They use distance sensors and algorithims to map an area so they can go room to room on the same floor.They also roll themselves back to the recharging station when the battery gets low, and after getting charged, pick up where they left off.You can schedule it to run every day, every three days, whatever.Biggest drawback is that the dust bin is a little small.

Here's my experience: accept the Section 8 applicant, inspector comes about a week after; he's required to fail you based on one minor infraction, such as a loose wall plate, missing fire extinguisher, smoke alarm without battery, etc.

Locally We are adding Full solar with whole-home battery EV charging and Smart home compliance for the newest group of Renters who will pay extra for these features.

You might get more rent.Just like flipping a property you have to recondition and get rent ready based on the type of tenant that will live in the property.If you are in an area with higher turnover than you don't want to put really nice stuff in there.Remember to not make it about your personal standards.What you deem acceptable and what other consider a nice place to live might be 2 different things.I make things functional but do not over improve.I can tell you that doing basic electrical and plumbing yourself will save you a ton.Stay away from contractors that make it seem like you are getting a good price and feel like you are getting over on them.I find the professional contractors give you a bid and if they win the work they don't complain about the low price they put forward they just get it done the right way.

Salt Water corrodes a car like battery acid.

Can buy for around $200 on Amazon.Reolink Outdoor 3G/4G LTE Mobile Cellular Battery Security Camera Reolink GoYou simply put in a sim card and download their app.

Anyway they store data on an SD card that you have to check manually, but it is inexpensive, battery operated, and easy to hide.