Calibration and Verification Center

  • Our Calibration Center is accredited per DIN EN ISO / IEC 17025 as DakkS Calibration Lab under
    no. D-K-20313-01-00
  • Our laboratory is one of three DAkkS- Calibration Laboratories of the GMC-Instruments Group in the location of Nürnberg. Another laboratory is located in the Netherlands
  • State-approved test center for electricity meters

The GMC-I Service Calibration Center is accredited per DIN EN ISO / IEC 17025 as DAkkS Calibration Laboratory under no. D-K-20313-01-00. The DAkkS Calibration certificate resp. the SI-units, documents that the national standards are met and guarantees a seamless traceability. Sample

The DAkkS Calibration Laboratory of GMC-I Service GmbH is one of three DAkkS Calibration Laboratories of the GMC-Instruments group in the location of Nürnberg. Part of the group is also another DAkkS Laboratory in the Netherlands. Together we are forming one of the largest DAkkS Laboratories for electrical measurements.


Laboratory Accreditation Characteristics
GMC-I Service GmbH D-K-20313-01-00 Repair, adjustment, re-calibration with conformity certification by Gossen Metrawatt Geräte
Gossen Metrawatt GmbH D-K-15080-01-01 Measurement traceability due to factory-norms, calibration and recalibration of currently manufactured Gossen Metrawatt devices
GOSSEN Foto und Lichtmesstechnik GmbH D-K-20315-01-00 Factory-calibration for illuminance, measuring luminance and irradiation UV-A (365nm)
GMC-Instruments Nederland B.V. D-K-15080-01-02 Contact for Benelux countries
Gossen Metrawatt GmbH EBY8 State approved Test Center for electricity meters

Further more Gossen Metrawatt GmbH (former GMC-I Messtechnik GmbH) is state approved Test Center for electricity meters – EBY 8. You can do a verification for counters, re-verfication and and you can do a DAkkS-calibration. The calibration of counters and components of the energy management is becoming increasingly important within the elcromobility and in regenerative energy generation.







In the location of Nürnberg, our sister company GOSSEN Foto- und Lichtmesstechnik GmbH  develops, produces and sells spectrometers, illuminance and measuring luminance devices as well as lightmeters.

With the  MAVOSPEC BASE  you can check and easily document the results of all all relevant parameters of LED and conventional light sources as well as plant lighting. It is the perfect solution in the age of LED lighting and luxmeter of the the future.




The accredited Light laboratory offers various calibration- and measurement services for own products and for products from competitors. Regular calibration ensures product- and service quality and creates legal certainty with regards to product liability as well as for acceptance tests and assessments.


You will find valuable and easily understandable background information about the area of application within the free compendium about Light Measurement technology, UV Measurement technology and Light Measurement.