Measuring the temperature of a tacking iron
An IR reflective temperature gun should not be used to accurately measure the temperature of a tacking iron. IR thermometers are basically “brightness meters” for infrared light, not magical temperature mind-readers. Shiny brass messes with them because it’s a low-emissivity, high-reflectivity surface. Here’s what’s going on: IR thermometers assume a certain emissivity.Emissivity















































