The Ametek/US Gauge 173526 is a T-572 Model, back mount industrial thermometer with a 5.5" scale size, 3.5" brass stem, cast aluminum, blue epoxy finish case, and 30 to 240 °F temperature range. The T-572 is a small, compact instrument of sturdy steel construction. It combines the advantages of easy readability, small size, and adaptability to a variety of installations requiring an economical thermometer. Careful consideration must be given to the material of the bulb shield. Failure of the bulb shield by corrosion will allow the medium being measured to escape from its container."