Features: 1) High quality, hermetic; 2) High accuracy Features:1) Bimetal thermometer2) The thermometer consists of high grade bimeter, and it can measure accurately the temperature of any liquid or gas3) Dial: 2", 2.5", 3", 4", 5", 6"4) Connection: 1/4", 3/8", 1/2"5) Stem length:2.5" - 40"6) Material: Stainless Steel7) Range: -40 - 500oC8) Accuracy: ±1%