I know it's a bit late for your question but might help others.
I have an HTI-A2 and also own a few FLIR and Hikkvision thermal cameras.
The Hikvision DS-2TD2136 is a cctv module which i used with the built in adjustable focus lens (if you open it up) as an electronics camera, an absolute beast at 50Hz refresh rate 384*288 resolution and very good sensitivity, never seen anything like that, but anyways...
The HTI-A2 is basically a Seek Pro core, so pretty noisy and thermal sensitivity isn't great
Also it only saves JPEG , not radiometric JPEG, just standard jpeg as a full screenshot where you also see the battery level, emmisivity, everything that was on screen when the image was taken.
Now for the painful part: HTI don't EVER reply to your emails after you bought the product, EVER.
I left a 1 star review for their product/service and that was never added to their official reviews page on their site, pretty crooked if you ask me, i did that twice, "thanks for your review" message, days and weeks later no review was published.
Don't ever think about customer support or firmware upgrades for their products.
You buy cheap because it is cheap as an overall experience !