Tel-Tru 12" Stainless Steel Cheesemaking Thermometer 0/220 degrees F 12" Long with a 2" Glass Lens Dial Stainless Steel Construction 0/220 Degrees F and -10/100 Degrees C Temp. Range Recalibration Nut & Pan Clip Tel-Tru is known as one of the world's premier thermometer manufacturers.