Thermocouple RTD

Thermocouple RTD Catalog


Pressure Temperature Catalog

Pressure Temperature Catalog


Compost Product & Pricing Guide

Compost Products



REOTEMP is a globally recognized ISO 9001-2008 manufacturer of temperature and pressure instrumentation. Berg-Nelson Co is Reotemps Premier distributor here in our area. Together we provide bimetal thermometers, pressure gauges, diaphragm seals, RTDs, thermocouples, pressure transmitters, compost thermometers, and related accessories to a variety of process markets worldwide.

Their reputation is built on high quality products, quick standard lead times, and exceptional customer support. With Reotemp in our corner, Berg-Nelson is dedicated to providing our customers with complete satisfaction, from the first phone call to the design and quality of the instrument they receive. Through REOTEMP, we provide both standard and application specific products and are ready and willing to find a solution to all of your temperature and pressure needs.

The markets we serve



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.



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.



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.



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.


Call on Berg-Nelson for your pressure and/or temperature monitoring needs.


We average approximately 300 gauges ON OUR SHELF in the 2-1/2” all-stainless glycerine-filled with 1/4” connection, and the larger 4-1/2” stainless internals 1/2” bottom-mount process gages. And if you need your new gauge certified, we offer on-site gauge certification. We can also re-certify used gauges. We look forward to your call.