Civil department of HES, s.r.o. offers repairs of modern instrument. Also there is a civil ISO 17025 calibration laboratory offering high precision calibrations according to ISO 17025 standards. Our accredited calibrations cover these fields:

Electric quantities
Frequency and time

For our customers we also offer full service of ISO 17025 calibrations. In case of need for calibration in different field of measurement we arrange these calibrations in cooperating accredited laboratories.

Civil ISO 17025 calibrations

Department of special / military equipment

We offer repairs and calibrations for on ground testing and control equipment for L-39, L-59, MIG-29, MI-8, MI-17, MI-24 and other.


Apart of the civil repair center and ISO 17025 accredited calibration laboratory our company specializes on repairs and calibration of special/military equipment. Our specialists have many years of experience, working with special equipment. Not only as users but especially we specialize on repairing and calibrating of these equipment. We also dispone with a large archive of documentation for instruments dating many years ago.

We are able to offer:
  • Repairs
  • Calibration
  • Consultations
  • Training

We perform large numbers of repairs and calibrations of special/military equipment

Specialized working space (faraday cage) for calibration and testing of radio compass.

Specialized working station for calibration and testing of RSBN.


Specialized working site for calibration and testing of pitot (static/dynamic) equipment

Here is a list of some instrument we repair and calibrate: