If you roast coffee on a stove top, grill, or with a modified popcorn popper, getting an accurate temperature reading is essential to achieving consistent results. This thermometer has everything a home roaster needs all at a very affordable price: a large 2�€� dial with a glass lens that will not melt at high temperatures, a 9 inch stainless steel temperature probe, and a large stainless steel pan clip that will hold the probe exactly where you need it. Includes a calibration nut so thermometer can be recalibrated with a small wrench (adjust so it reads 212 oF at sea level).