Temperature Instruments


Marsh Bellofram designs and manufactures a variety of high-reliability and cost-effective industrial-grade temperature instruments, including bi-metal, hot water, industrial, submarine, miniature (pocket) and digital thermometers and tridicators, designed to provide high-accuracy monitoring of temperature fluctuations in process control, offshore, power generation, oil and gas, chemical processing, medical equipment, HVAC and OEM applications.


Hot Water Thermometer

Hot Water Thermometer

The Hot Water Thermometer from Marsh Instruments is an industrial grade Hot Water Thermometer, designed for high-accuracy temperature readings of hot water lines, boilers and hydronic systems to +250°F (+121°C). Units feature a bi-metallic element, aluminum stem and case material and offer […]

Bimetal Thermometers

Bimetal Thermometers

Bimetal Thermometers from Marsh Instruments feature an all-welded corrosion-resistant 304 stainless steel construction. These bimetal thermometers combine the benefits of economy and reliability for locally mounted temperature indication requirements in dual scale ranges from -50° to +1,000°F (-40° to +525°C). […]

Industrial Thermometer

Industrial Thermometer

The Industrial Thermometer from Marsh Instruments offers high-performance monitoring in temperature ranges to +300°F (+150°C) in a compact design. The large 9″ dial scale of the Industrial Thermometer permits easy reading at extended distances. The thermometers feature a glass-reinforced nylon […]

Submarine Thermometer

The Submarine Thermometer from Marsh Instruments offers both durability and performance, with a manufactured standard accuracy of 1% of span and temperature monitoring capabilities to +400°F (+200°C). Units feature a 5-inch v-shaped aluminum scale with black markings and a lens […]

Pocket Thermometer

Pocket Thermometer

The industrial grade pocket thermometer from Marsh Instruments is designed to provide portable, on-demand temperature monitoring capabilities to +550°F (+288°C). Each unit offers a 1” dial with 5” long 304 stainless steel stem and plastic lens and comes with a […]

Digital Pocket Thermometer

Digital Pocket Thermometer

The Digital Pocket Thermometer from Marsh Instruments is designed to provide portable, on-demand temperature monitoring capabilities to +302°F (+150°C). Accuracy is ±2°F with an update time of 10 seconds. The thermometer features digital temperature readout to a 3.5-digit LCD display. […]

Tridicators (Boiler Gauges)

Tridicators (Boiler Gauges)

Tridicators from Marsh Instruments, also known as boiler gauges, are designed to indicate pressure in psi and altitude for pools and spas in feet of H2O, as well as in units of Fahrenheit or Celsius (°F and °C), making them […]

Thermowells

Thermowells

Thermowells from Marsh Instruments are available in customer choice of brass or stainless steel. They are used to isolate and protect the sensing instrument from temperature extremes, and permit removal of a sensing instrument without shutting down the process.  Thermowells […]