From what it sounds like, using my arm as a sensor would have a similar resolution thermal imaging, with perhaps a faster scan rate.

I was intrigued that this came from an actual business and not a DIY hobbist, so looked into Tanagram and couldn't figure them out. A strange company... seems more design than actual engineering.

Isn't the better way to make something cheaper by inventing new components and then mass producing, vs. taking a stock, cheap, 8x1 thermopile array?