About Reotemp

Reotemp is a globally recognized US manufacturer of temperature and pressure instrumentation. Reotemp sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. We manufacture bimetal thermometers, pressure gauges, diaphragm seals, RTDs, thermocouples, pressure transmitters, compost thermometers, and related accessories to a variety of process markets worldwide.

Our reputation is built on high quality products, quick standard lead times, and exceptional customer support. We’re dedicated to providing our customers with complete satisfaction, from the first phone call to the design and quality of the instrument they receive. Reotemp provides both standard and application specific products and is ready and willing to find a solution to all of your temperature and pressure needs.


Reotemp manufactures standard and customized temperature and pressure instruments for industrial markets. Our company culture promotes rapid response and outstanding customer service while offering all employees a fulfilling work environment.

Core Values


Reotemp will grow by being recognized as the most responsive and capable supplier for the instrumentation needs of our industrial customers.

Guiding Principles


Oil, Gas, & Refining

This industry includes the global processes of exploration, extraction, refining, and transportation of petroleum products. It is usually divided into two major components: upstream and downstream.

Reotemp manufactures a variety of pressure and temperature instruments, which are used in both upstream and downstream applications. This market is known for high pressure applications, which commonly produce process pressures of 10,000psi +. Diaphragm seals are often used to protect pressure instruments (pressure gauges, transmitters, & switches) from high pressures, pulsation, and corrosion. Remote capillary diaphragm seal assemblies are helpful in removing pressure instrumentation from high temperature processes or high vibration areas. For safety reasons, there is often a need for redundant process sensing. Typically one analog instrument will be mounted locally in the process and a second electronic signal will be sent back to the control room. Reotemp’s Dual Mode Thermometer provides both a local indication and electronic output all in one unit. Reotemp’s new Hi-Vis pressure gauge dials are used in low light environments, which are often found in oil refineries or offshore rigs.

Common Applications:
Oil Refineries, Offshore Oil Rigs, Piping systems, Pipelines.

Power Generation

Electricity is usually generated at power plants by electromechanical generators, primarily driven by heat engines fueled by chemical combustion or by flowing water or wind. Energy can also be generated by solar photovoltaics and geothermal power.

Reotemp’s Thermocouples, RTD’s, and Bimetal thermometers are used in every corner of this industry. Power generation can create extreme process conditions including: high temperatures, high vibration, & shock. Reotemp is often called upon to build custom temperature sensors for particularly harsh environments.

Weld pad thermocouples are common in this industry. Reotemp offers a wide variety of weld pad styles, bends, and expansion loops. They are often used in boilers, and other piping applications.

Common Applications:
Turbines, Generators, Transformers, Compressors, Boilers, Pumps, Piping systems, Furnace Systems.

Water & Wastewater

Water treatment is the process of manipulating or cleaning water for a specific use. Typical uses include: water for drinking, industrial processes, medical use, wastewater treatment, and returning water to the environment.

The instrumentation Reotemp provides to this industry is largely related to pressure. Process and industrial pressure gauges are by far the most common product sold in this market. Another common product is the annular diaphragm seal. Annular seals are used throughout wastewater treatment plants because of their non-clogging design and durable nature. Reotemp provides new build annular seals and repairs old seal assemblies in a matter of days. Reotemp is a Certified Red Valve Repair Facility. The All-Welded Seal Gauge (pressure gauge and diaphragm seal welded together) is another commonly used product in this market. Available with a Hastelloy lower which protects the gauge from chlorine service and other corrosive chemicals used in the treatment process.

Common Applications:
Filters, Pumping stations, Piping Systems, Chemical Skids.

Food & Beverage

The Food & Beverage industry takes raw ingredients and processes them into products suitable for consumption by people or animals.

Temperature and pressure instrumentation is used throughout this industry. Applications that come into direct contact with food/beverage products are typically required to meet sanitary standards, such as “3-A”. Other products, which don’t come into direct contact don’t require these certifications. Sanitary products are easily identified by their tri-clamp (or tri-clover) process connection. This connection is favored because it’s easily cleaned and sanitized during routine shut-downs, unlike the standard threaded connections. Sanitary pressure gauges, thermometers, RTD’s, and thermowells are found in just about every food and beverage processing plant you’ll find.

Common Applications:
Filters, Piping systems, Boilers, Tank level.

Biotech & Pharmaceutical

Biotechnology involves using living organisms in engineering, technology, medicine, and other useful applications. The pharmaceutical industry develops and produces drugs licensed for use as medications.

This industry is filled with dynamic customers who need custom solutions on a regular basis. Since San Diego has a large BioTech presence, Reotemp has had the opportunity to design and manufacture a variety of innovative temperature and pressure sensors for local companies. Extremely low temperatures and high accuracy sensors are commonplace in this industry.