http://www.amazon.com/Simplisafe2-Wireless-Security-8-piece-Package/dp/B001PBYQHG/ref=sr_1_1?

I replaced my HP back in August with this Brother printer:Brother MFCJ6920DW Wireless Multifunction Inkjet PrinterTakes paper up to 11x17. 

The app shows battery strength level so it's easy to monitor.This is a wi-fi device that you connect to your homes wireless network. 

I had wanted to use SimpliSafe but I believe you need to connect to a wireless network, correct?

I plan to purchase an internet plan for the site and install a mesh wireless router system to boost the signal to all 4 tenants.

The wireless licenses alone are worth a killing. 

If your STR has a data-connection (verizon, satellite, Comcast etc.) then simply providing and wireless access point is simple. 

There are tax credits available specifically for those in the Agribusiness industry.5G Wireless Farm Program Income: As cellular companies are trying to expand their 5G network, this is a great opportunity for those with land to contract a lease with cellular companies to result in passive income.Solar Incentives: Tax deduction for up to 26% of the cost of a solar energy systemESG Farming Incentives: Implementation of environmentally friendly practices.Florida Sales Tax Exemption: New machinery, parts, etc. are exempt from sales tax.Are you currently utilizing any of these tax credits on your farm or ranch?

MN and NV power companies both provided free wireless thermostats from ecobee.

Also,  I'm guessing I need an electrician to install the cameras, but perhaps they are wireless now.