Regarding the "replace smoke detector batteries" keep in mind that there are 10-year devices that never need battery replacements. 

Oil, batteries, etc.

Here you will meet wholesalers who will point deals to you and rehabbers.Your market is one of the top emerging markets in the country.To find a good property manager go to IREM.org search for ARM certified they passed a battery of tests to become certified.Good LuckPaul

rh=n%3A11041141Engaging the neighbors, neighborhood watch, etc. for assistanceVideo/fake video camerasWindow coveringLighting (battery if need be)Post construction:1.

I get the combination smoke/CO detectors in one unit; if battery-only powered, I get the units that have a 10 year battery and warranty these days.A level of 500 is more like 100 times normal; in a house where I have a CO detector with digital readout and peak level memory, it never got above 9 over many years of service.Sounds like some of that work was not done to code; the code enforcement inspector could be called in to do what they do.

I just checked the CO detectors today and replaced batteries.

A lease may allow or require maintenance in a commercial lease, it is not acceptable in a residential lease, beyond minor issues, like HVAC filters, changing batteries in alarms or cleaning gutters.

You can also employ loud battery - powered alarms.

The battery back up system has been damaged by water and not replaced.

You can also get those battery opperated alarms from harbor freight tools for under $10 and stiick them on windows.