Measuring and controlling in accordance with all rules of the art and the laws of physics

When the task at hand is the measuring, controlling and regulating of processes, we provide you precisely the suitable technology. At our Center of Competence Martens in Barsbüttel, near Hamburg, we develop and produce robust and reliable components for the demanding process and industrial technology. In this regard the seal of quality "Made in Germany" not only characterizes the quality of our technical solutions, it equally stands for the innovative strength of our company. There is a good reason why the delivery and manufacturing program ranges from digital indicators, to measuring transducers and evaluating devices, and extends to sensors – the entire spectrum of modern analysis and industrial measuring technology. We satisfy customer-specific requirements with especially adapted devices. The resulting versatility of our products is reflected in a broad range of applications: From building technology and plant engineering to the food industry, our products measure, control and regulate countless technical processes. Virtually any physical variable can be measured, recorded and evaluated. And one significant variable can be materially felt: The quality. We consider care to be the most important additional matter, of which our products are manufactured.

"The only measurement that humans can perform on their own is a simple count. For everything else they require technical aids. We offer powerful and efficient industrial electronics for this purpose".

Torsten Obermann
Key Account Manager | Industrial Electronics

Core Competencies

Field of Competence

  • measuring and automation technology proven a million times over
  • standardized and certified products in accordance with SIL, ATEX, EN 14597
  • customized designs with short delivery times even in small quantities

 Analytical Measuring Technology

  • decades of experience in conductivity and pH-value measurements
  • 2-pin and 4-pin measuring cells for a broad range of applications
  • usable in ultra-pure water, waste water and abrasive chemicals
  • on-site transducers or switch cabinet designs

Safety-Related Assemblies

  • temperature and safety temperature limiters according to EN 14597 for monitoring thermal process systems
  • safety temperature limiter with SIL 2- and ATEX-Certification
  • wide range of limit switches according to SIL 2- and ATEX-Certification
  • isolation EN 61557-8 for monitoring IT-Networks

Automation Technology

  • specially designed controllers for multi-functional use across a wide range of applications
  • dataloggers, process computers, PID controllers, multi-channel controllers, isolation recorder with built-in configurable sequential control
  • integrated process simulation

Panel Equipment

  • wide selection of isolating amplifiers and transducers partially with ATEX-Certification
  • fast and reliable commissioning thanks to easy-to-grasp operating concepts
  • customized characteristic curves
  • time and space-saving installation thanks to highly advanced system technology


  • reduced configuration times thanks to designs that are tailored to the measured variable
  • control panel installation housing or IP65-field housing with a rugged, shock-resistant design


  • precise industrial sensor technology for temperature, conductivity, pH and redox
  • temperature measurement without interference in the process with clamp-on sensors
  • fast delivery thanks to extensive vertical range of in-house manufacture

Your direct contact to us

GHM Messtechnik GmbH  |  GHM GROUP – Martens
Kiebitzhörn 18  |  22885 Barsbüttel  |  GERMANY