I have a Seek Thermal camera, that works with any Android phone or tablet (but there are issues with some devices that have the OTG USB port facing the "wrong" way).  I don't use it that often, in fact it's probably a year since I last used it, but it does work well.  If anyone wants to borrow it I'm happy to loan it out.  The Seek Thermal app is a free download and should work on any Android device.  The sensor resolution is reasonably good, at 206 x 156, so a fair bit better than the 80 x 60 r