Thermal imaging camera / security camera or cell phone attachment camera

In the market for a decent thermal camera. Most on the market are a joke. Very poor image quality. Would think FLIR would be good… its not, unless you pay into the $1,000s. That is old tech. Don’t see why it has to cost so much. I remember when “Night vision” was a new thing, and it costs a lot and quality stunk. Night vision is in everything its decent and cheap. But a good thermal cam would blow night vision out of the water…