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Being the Representative of the company Elster - Instromet,  the worldwide market leader and specialist for Flow Measurement & Control Equipment and Systems focussed on gas, UNIS FAGAS markets the following Products:



  • regulators for high pressures as well as medium and low
  • ultrasonic gas flow meters for fiscal and non-fiscal
  • diaphragm gas meters, rotary gas meters,
  • turbine gas meters and Quantometers, 
  • flow computers, volume correctors and data loggers
  • devices for data transfer and remote read-out with
  • energy measurement and analysis as well as
  • gas stations of every size and supervisory systems
  • calibration and calibration test rigs.




 Unis Fagas is Representative of the company Prematlak a.s.  from Slovakia.


Prematlak joint stock company was established in January 1, 1998 as the successor of CHIRANA-PREMA Zavod 09 Tlakomery and so substantial experiences (lasting 50 years) is guaranteed in the field of development and production of manometer technology. The company has the certificate from the Slovak Institute of Metrology for all their manometers. Also, they have the certificate: management quality system complying with the norms STN EN ISO 9001.

Services offer:

  • development of specialized manometers,
  • option specialized madetoorder manufacturing according to concrete requirements of customers,
  • 24 month guaranty,
  • seminars and training about products,
  • warantee and post-warantee maintenance servise,
  • consulting.

Safety trademark

The company Prematlak is the owner of safety trademark: image trademark and word trademark. 

Unis Fagas has a Type Approval for thermometers and pressure gauges manufacturers Prematlak for Bosnia and Herzegovina, issued by the Institute of Metrology of Bosnia and Herzegovina.








Unis Fagas is representative of the company Techart d.o.o. from Serbia.

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Rajlovacka BB
71000, Sarajevo
Bosnia and Herzegovina