Being the world leader in its field, G.R.A.S company offers various solutions for acoustic sensors and accessories. These include products such as various microphones, preamplifiers, calibrators. It is possible to collect G.R.A.S acoustic sensors and accessories under the main headings.


  • Microphones
  • Preamplifier
  • TEDS microphones
  • Power modules
  • Intensity-microphones and calibrators
  • Intensity probes
  • Pistonphone & calibration equipment
  • Telephone Test Head
  • KEMAR Manikin (head and torso simulator)

BİAS Products

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BİAS Products

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