I note the stated temperature range is only 5C to 90C. That suggests to me that the OEM is going for the highest possible sensitivity with 0.03C NETD. Without the use of a TEC, that can be a challenge. The TEC would be quite power hungry though.
Fraser
I'm reasonably sure it doesn't have a TEC, if only because of the quoted power consumption and the lower resolution build.
If Opgal has gone for best-possible sensitivity in the 5-90°C range then I think they understand their user base well. Judging by the 600+ images on the Flickr site, the majority of our 'domestic' use is roughly within that range. Yes, it is sometimes pointed at a freezer or a toaster but not with a great expectation of accurate results. Speaking for myself, at least, I'm more interested in making pretty pictures than accurately determining temperature profiles. Thankfully, mine is the less-demanding application and so rather cheaper than higher-spec industrial or research grade cameras.
I do dream, however, of a megapixel-plus imager packaged up with a (say) 15–150mm auto/manual focus f/0.5–f/4 zoom lens, all in a package the size, weight and price of a good DSLR. Oh, and just for fun, let's have it respond to LWIR, MWIR and NIR in three channels that map to RGB.
I think I will be waiting for quite a while before anything like that comes onto the market! And yes, I am familiar enough with today's technology and market to realise just
how pie-in-the-sky my suggestions are.