We sense
innovation.
Important information about trademark infringements and imitation!

Beware of copied or imitation products that do not meet our German quality standards and are not sold or manufactured by us, Gräff GmbH, Bonner Straße 54, D – 53842 Troisdorf, Germany!

Declaration (PDF)

We wish you a merry Christmas and a happy new year …

Merry Christmas
and a wonderful start to 2026

We look back on a challenging year. This makes us all the more grateful for the solidarity and the trust you have placed in us. Together, we move into the future strengthened.

The team of Gräff GmbH wishes you a reflective and hopeful Christmas season!

Our company will be closed from December 22, 2025, to January 2, 2026.

Temperature sensors from Gräff GmbH

Innovative by tradition.

Innovative Temperature Measurement Technology – Made in Germany.
Gräff has stood for quality and innovation for nearly 80 years. As a family-owned company in its third generation, we leverage extensive expertise to set new standards in temperature measurement—both in Germany and worldwide.

Product portfolio

The right product for everyone.

Insulating sleeves

Electronics

Temperature sensor

Melt pressure sensor

Electric heating

Electric heating

Insulating sleeves

Electronics

Temperature sensor

Melt pressure sensor

Gräff’s CAD Configurator

Easily configure temperature sensors individually.

Do you have specific requirements for your temperature sensor? You can directly use our CAD Configurator for this. This not only allows you to configure your sensor individually, you can also export your configuration to all common CAD formats and use it for further design. What do you have to do? Register for free upon completion of your design to be able to export it. You are welcome to contact us directly if you would like us to assist you. We will be happy to support you anytime.

At Gräff, we are always by your side. Together, we offer you the solutions you really need.

Marion Hupperich

Managing Director Gräff GmbH

At Gräff, we are always by your side. Together, we offer you the solutions you really need.

Marion Hupperich

Managing Director Gräff GmbH

Contact us

Thermocouples and resistance thermometers

Solutions for all industries.

We offer more than 5,000 different thermocouples and resistance thermometers, with over 20,000 variations. Yet, we continually develop new, customized solutions for every challenge and every industry.

  • Plastics industry

  • Food industry

  • Raw material refining industry

  • Metalworking

  • Furnace construction

  • Waste management

  • Automotive industry

  • Plant and mechanical engineering

  • Construction industry

  • Glass industry

  • Textile industry

For us, it was a problem, for Gräff only a challenge, which they tackled brilliantly and perfectly. Thanks for the solution.

Customer

Company

Gräff in figures.

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You are looking for solutions.
We have the answers.

We are there for you if you have questions, specific requirements or challenges that require special and custom-made solutions. We are happy to personally assist you with our competences. You are welcome to contact us anytime.

Products “Made in Germany”
Personal contacts