Trerice B8540204 Industrial Bimetal Thermometer

The TRERICE B8540204 is a 5-inch dial, hermetically sealed stainless steel bimetal thermometer designed for industrial temperature measurement without external power. It provides a direct mechanical indication over a 0–200°F range and is commonly installed in process piping, boilers, heat exchangers, HVAC equipment, water treatment systems, storage tanks, and industrial manufacturing machinery where continuous temperature monitoring is required, with the large dial offering clear visibility for operators in challenging environments. The device uses a 1/2 in NPT lower connection, a 2-1/2 inch stem, and a 300 series stainless steel stem, all housed in a hermetically sealed stainless steel case to endure rugged industrial settings. The external reset is recalibratable, allowing field adjustments to maintain accuracy over time. Maintenance teams, OEM engineers, and system integrators rely on the B8540204 for repair, retrofit, equipment upgrades, and replacement of worn or damaged industrial thermometers in applications including industrial process control, steam systems, commercial HVAC, chemical processing, food and beverage production, and water distribution. Common replacements include TRERICE B8520204, WIKA A52.100, and Ashcroft EI.