The Tel-Tru UT300 is one of the most popular thermometers on the market. Brands like Backwoods Smokers and Humphrey's Smokers trust their pit temperature to this exact thermometer. It features a 3 inch dial and a 50-550 degrees Fahrenheit temperature range. This particular thermometer has a 4" stem, 1/2" NPT and will require a 7/8" inch hole for installation. A installation kit is recommended and can be purchased separately from our store.