No, Flexwatt is a resistance heater induction heat systems are usually use in commercial kitchens. But yes IR guns are a useful tool but they have a lot of quirks reflecting off surfaces are one of them. They also measure different surfaces differently they are calibrated generally for something about brown paper bag reflectance objects of different IR reflectance may read incorrectly as well. A general guid not a be all end all tool. Plus most have a 4 degree error range 2ºF up and 2ºF down. That too will be in the specs.