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 PhotoMarsh Bellofram industrial-grade hot water thermometers are 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 accuracy to ±1% of span throughout entire range.

BiMetal Thermometer

BiMetal Thermometer PhotoFeaturing an all-welded corrosion-resistant 304 stainless steel construction, Marsh Bellofram bimetal thermometers have dual scale ranges from -50° to +1,000°F (-40° to +525°C). The extremely responsive bimetal sensing element provides measurement accuracy within ±1% of full scale. The hermetically sealed and ruggedly built case is resistant to shock, vibration, dust and moisture. Built-in over range protection is a standard feature.

Industrial Thermometer

Industrial Thermometer PhotoMarsh Bellofram industrial thermometers offer high-performance monitoring in temperature ranges to +300°F (+150°C) in a compact design. The large 9" dial scale permits easy reading at extended distances. The thermometers feature a glass-reinforced nylon case that is lightweight, yet rugged enough to withstand harsh environments, with an adjustable stem that can be locked into any position through a 180° arc.

Submarine Thermometer

Submarine Thermometer PhotoMarsh Bellofram submarine thermometers offer 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 front, as well as a gray ABS case with a red spirit-filled reading tube and magnifying lens for readability. The thermometers also feature a 2" nominal stem length for 3-1⁄4" OA socket and a white aluminum scale with bold black graduations and figures.

Pocket Thermometer

Pocket Thermometer PhotoMarsh Bellofram industrial pocket thermometers are 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.. Units are housed in a 304 stainless steel case, which is hermetically sealed for use in harsh and dirty environments. Typical applications include the food industries, HVAC/R industries, and any OEM or industrial application requiring fast and accurate temperature indication.

Digital Pocket Thermometer

Digital Pocket Thermometer PhotoMarsh Bellofram digital pocket thermometers are designed to provide portable, on-demand temperature monitoring capabilities to +302°F (+150°C). Accuracy is ±2F with an update time of 10 seconds. The thermometer features digital temperature readout to a 3.5-digit LCD display. Units also feature a 5-inch long stainless steel stem and an on-off switch for longer battery life.

Tridicators

Tridicator PhotoMarsh Bellofram tridicators, 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 suitable for use in hot water heating systems applications. Models are available in dial sizes of 2-1⁄2" and 3-1⁄2" and with three available pressure ranges. All feature a set hand for setting desired pressure and altitude of the installation. Typical applications include hot water boilers, heated pools, spas and hot tubs.