Is there a meter or app for identifying strong signal coming at house?

My coronet ed88t plus picks up a very strong signal that appears to come at the front of the house in a way that seems like its coming from the sky in a beam. I could be totally off. But it shows the mhz frequency on the meter as 2100 - 2337mhz. Nowhere else except the front porch and near one window can I pickup this signal. Could it be the alarm company trying to communicate with the turned off console? They've sent us emails saying the alarm has been turned of x number of days. We don't have close neighbors near this window and it's not all over the porch or anywhere else around the house. One thing I've noticed is since we ditched our xfinity wifi and subsequently Hotspot a new xfinity Hotspot has surfaced from what I can only assume is a neighbors new service.

Is there a device that might be able to identify who's wifi or cellular this signal belongs to? Could it pick up some identifier.

Its gotten to the point I can't sit in the living room anymore and be in the house possibly because of this signal.

I am so sorry to hear of your problems Chupa38. I have little idea about how to identify these signals and the source of them, but have you considered investing in a canopy or shielding a room with special paint? We have over the years had different sources of new wifi and signals coming from neighbours etc but having a safe space such as a canopy to retreat to has really helped. It gives the body the rest it needs and also stops the emfs from stacking up in our systems.
I really hope you can get to the root of the problem.

Thank you for your sympathy. Unfortunately me being sensitive has lead to financial ruin. Every job requires computer/phone, etc use. I've maxed my credit cards out. I have a block bag but recently it's just not working (oddly the meter shows its reducing RF to 0.003 mw/m2). I think the neighbors kid is on her phone or wifi all night long and it spill over. Just a hunch. Our other neighbor just retired. After that I noticed an xfinity truck outside her home. It seems my symptoms were exacerbated after the xfinity visit. My phone shows 3 very strong wifi sources coming into our house at various points. I'm trying to figure out how to afford the paint and such.