The Seek cameras themselves do not provide any temperature values for the pixels; that has to be done in software.
I think most people lost interest in the Seek cameras due to the high noise of the early Seeks and the availability of other cameras that are lower noise than even the newer Seeks. I have observed some disturbing anomalies in my Seeks that should concern you, such as on occasion the temperatures of the entire scene will suddenly jump a couple degrees Fahrenheit, stay there a short while & then drop back to where they were. I have not tried to figure out what is going on there but it is either something in my code (but I don't think so) or maybe the thing for some reason shifts the bias on the entire array (since it happens after a shutter frame). I am quite sure I have seen this at room temperature but it is more frequent and more pronounced when the cameras are out on the windowsill in freezing temperatures.
I have a method for getting temperatures out of Seek data but I don't consider my results "proven". I get readings that I think are good enough for casual home use but I have not
proven how accurate or consistent they are and I believe my process needs to be tweaked as it is. If you expect your numbers to be accepted by customers or even your own employer I think you would want to prove the accuracy and consistency of the results via some recognized "standard" equipment. You should also note that even the FLIR A40, 50, 60 series mentioned above is specified accurate to only +/-2*C (or 2% of reading), so you can't expect any better accuracy than that.
My method is based on 2 things from the camera:
a) There is a pixel in each frame that provides a measure of the temperature of the camera (pixel 1 in the non-pro). The number is different in each camera but it decreases by 10 for every degree Fahrenheit increase in camera temperature.
b) One of the frames put out on startup, the one with status byte=9, contains a curve that looks much like a radiance vs. temperature curve.
If you would like details on how I derive temperature from Seek data I prefer that you post that question on my thread:
https://www.eevblog.com/forum/thermal-imaging/running-seek-thermal-cameras-(-others)-on-a-raspberry-pi/?PHPSESSID=ti38hc7ih08p4l3svtjo319sm2 as that is my forum for talking about my software and I think people would be more likely to look for & find the information there. OR maybe you could start another topic about how to determine pixel temperatures on Seek (all?) cameras.