Home brewing is the best kind of science and this Bayou Classic 12 in. Brew Thermometer makes that job a little easier. This home brew thermometer precisely measures temperatures from 0F to 220F degrees. It boasts heavy-duty stainless steel construction, a tempered glass face, plus steel flame spreader and hose guard. The half-inch bulkhead fittings ensure a water-tight seal. Stem dimensions: 12 in.. Made from stainless steel. Silver finish. Extended stem. Watertight seal. Reads temperatures up to 220 degrees Fahrenheit.