Thermometer has a 3" dial face with a 2.5" stem. It is very easy to install, as you just insert the stem through A 7/8 hole on your Grill-Smoker-pit and attach the Installation Kit is included.YOU Will Be BUYING 2 New BBQ Thermometer:3" Face 1/4" stem measures approx 2.5" long;Color coded Zones; BLUE zone 100-250 Smoke & RED zone 250-350 BBQ;Face reads 100 to 475 degrees Fahrenheit;Heavy Duty Stainless Steel Construction Built To Last;NO-fog glass lens.