Are battery operated smoke detectors allowed?

and you never know when someone's phone battery dies on their way to the property....no directions...well then maybe they can't find it....if they're from another country without a local SIM card....very possible in Dallas..then written directions can be vital..not just see GPS.......so that's why things like directions are important.Do you allow pets?......

All of my units will have a minimum of one hard wired one and one battery operated one.

Elon Musk's Texas business empire continues to mushroom.The latest expansion plans include a sprawling Travis County campus for brain-computer interface startup Neuralink Corp. and a potential lithium battery plant for Tesla Inc. near Corpus Christi.Tesla could eventually develop a roughly $365 million battery-grade lithium hydroxide refining facility near Robstown, in Nueces County, according to the applications.

Honda has invested $3.5 Billion in Fayette County for a plant that will make batteries for electric vehicles. https://www.dispatch.com/story/business/automotive/2023/02/28/ev-battery-plant-in-fayette-county-to-employ-2200-workers/69933524007/According to Licking County Auditor records, Amazon Data Services Inc.

They have a wide range of cameras, some battery powered, others wired.

I was going to suggest setting up dual pumps and probably a battery backed up one, depending why the current one failed. 

Does your quote include a battery backup system?

The battery & motor simply engage the knob for the user to manually open or close the lock.

Many landlords perform periodic inspections to check for leaks, HVAC filter changes, smoke alarm batteries, general lease compliance, among other items; so, that provides the opportunity to see the unit and you do not need house cleanings for that.Regarding cleaning, I would suggest that is a different business than REI and REI and obtaining market rent is hard enough as it is without complicating matters.