Custom industrial thermocouples | Manufacturer in Spain

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Temperature measurement solutions for demanding industrial processes
Jemar Termometría is a Spanish manufacturer of custom industrial thermocouples, designed for applications where measurement reliability is critical. We manufacture thermocouples according to technical specifications, adapting each sensor to the process, temperature range, and actual operating conditions.
Our thermocouples are used in steelmaking, metallurgy, energy, thermal processes, chemical and food industries, industrial environments where standard solutions do not offer the necessary durability and stability.
Industrial thermocouples designed for extreme conditions
An industrial thermocouple must adapt to the process, not the other way around. Incorrect selection of thermocouple type, sheath material, or immersion length leads to premature failures, reading deviations, and unnecessary downtime. At Jemar Thermometry, we design each thermocouple considering all critical parameters to guarantee stable measurement and a long sensor lifespan.
Custom thermocouple manufacturing
We manufacture custom industrial thermocouples, adapting them to your specifications:
- Type of thermocouple (K, J, S, B)
- Length and diameter
- Sheath material (metal or ceramic)
- Fastening system
- Cable type and connection
This approach allows for obtaining reliable sensors, adapted to the real conditions of the industrial process.
Typical industrial applications
Our industrial thermocouples are used in:
- Industrial ovens
- Iron and steel industry
- Continuous thermal processes
- Heavy industry
- High-temperature applications
Each application requires a specific design to ensure the reliability of the measurement.
Why choose a custom-made industrial thermocouple?
A custom-made thermocouple offers clear advantages over standard solutions:
- Greater reading stability
- Lower failure rate
- Longer lifespan
- Reduction of process stoppages
- Better adaptation to the industrial environment
At Jemar Thermometry we are manufacturers, which allows us to adapt each sensor to the real needs of the client.
For detailed technical information on thermocouple selection and use, you can consult our Industrial Thermocouple Knowledge Center.
Every industrial process is different and requires a specific sensor. At Jemar Thermometry, we manufacture custom industrial thermocouples for demanding processes.
Products and Applications by Sector

Wire thermocouple
JEMAR cable thermocouples
Thermometry offers accuracy and reliability
in temperature measurement. Available in
custom configurations, with sample or
Customer's plan. They are manufactured with materials of
high quality and combinations of metals that
They guarantee durability even in environments
extremes. These sensors are ideal for
diverse industrial applications, with options
of grounded or isolated connection, and ranges of
temperature that adjusts to the needs
of specific processes. Ideal for a wide range of applications,
from simple temperature measurements
even the most extreme conditions, they offer
reliable performance in temperatures that
They range from -50°C to 1150°C.

Jacketed thermocouple
Jemar Thermometry manufactures these thermocouples, which stand out for their stainless steel sheath and
They are available in diameters from 0.5 to 8 mm,
with options for grounding or isolated bonding depending
the specific needs. Its design
Semi-rigid allows them to be molded to fit
to particular configurations without compromising
its performance.
Ideal for a wide range of applications,
from simple temperature measurements
Even in the most extreme conditions, they offer a
Reliable performance at temperatures that
They range from -50°C to 1150°C. Guaranteed by
JEMAR Thermometry quality, are a
robust and versatile solution for any
industrial environment.

Thermocouple with sheath
JEMAR Thermometry's thermocouples with stainless steel, ceramic, and pyrometric sheaths are designed to offer precision and durability in a variety of industrial applications. The stainless steel sheaths ensure longevity and corrosion protection, while the ceramic sheaths are ideal for high temperatures. The pyrometric sheaths, for their part, withstand extreme environments with maximum reliability.
Adaptable to wide temperature ranges,
They are the perfect solution for demanding processes in multiple sectors.
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Our custom thermocouples are designed to withstand the most demanding conditions.


