I just bought the FLIR One Pro for Android with USB-C connector. When I purchased it, I had to click Accept on something that said under law I couldn't resell it outside of the US, or even to ANOTHER PERSON. The exact text was:
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. Government or as otherwise authorized by U.S. law and regulations.
I'm not sure if this is accurate. I think FLIR One Pro has a 9Hz frame-rate, and so it isn't under ITAR or other similar laws, other than the basic export regulation of not being able to sell to banned countries (North Korea, Iran, etc). Even the ones that ARE controlled by ITAR (30Hz thermal cameras), the limit is you can't export it outside of the US without government permission, and are more limited in which countries you are allowed to sell it in.
However, if that legal statement on the FLIR website actually IS CORRECT, and it means what I think it means, then that means every person who's selling even non-ITAR (9Hz) thermal imagers on ebay is in violation of US law. I notice the exact language in the legal statement says "They may not be resold, transferred, or otherwise disposed of" ... "to any person other than the authorized ultimate consignee or end-user". The phrases "authorized ultimate consignee" and "end-user" seem to refer to me, the person who bought it, meaning that if I want to get rid of it later on I can't just sell it to somebody on eBay, and if I did that I (and anybody else on eBay who's already doing it) would be violating US law.
So basically the only way now to dispose of a thermal imager legally is to throw it in the dumpster (after first smashing it with a hammer to make sure it can't fall into the hands of America's enemies who'd want to use it to harm the US)?