Monitoring power of remote sites

[rafcom]

Hi All

So I'm looking into some sort of way to do some basic power monitoring for remote sites (Metropolitan area, +-10km2). Simple things like, is the incoming 220V still there, or is a UPS still putting out it's 220V and if the monitoring device allows, what's the voltage level of the UPS battery. Ideally the monitoring device should have it's own battery so as to be able to report outages and connectivity would have to be GPRS or LoraWan (although I have not experience with this so not sure of coverage etc.).

I've done some basic searches into IoT devices but seems they mostly focus on temp and such, so would really appreciate a nudge in the right direction here

Thanks,

R