Originally Posted by Stubbs

Like I mentioned in my post, I do send mine off for calibration periodically. It's never needed adjustment.

One thing that the Exergen does well is compensate for the Emissivity of different objects. IR thermometers analyze the radiated heat to determine the temperature of an object. The better ones can better compensate for different emissivity values, and more accurately read temps from different color surfaces / different materials.

Without going into a lot of details, a flat black surface will have a different emmissivity than a gloss blue surface, which will have a different value than a shiny aluminum surface. A good IR thermometer can handle this difference better than the lower cost versions.

As I said before, for those that believe in them, nothing but an Exergen will do. For those that don't, they'll likely never be convinced to spend the money for one. Everyone is entitled to their own opinion.....