
GRAS is a world-leading manufacturer of high-precision measurement microphones. GRAS products are engineered for accuracy, repeatability, and durability in demanding industrial environments.
GRAS provides measurement microphones as sets (paired microphone cartridge and preamplifier) or separately.
Special microphones, array microphones, ear simulators and complete accessories for acoustic evaluation and compliance are available from GRAS.
Microphone Sets

The measurement microphone sets have been combined so they fulfil our users’ typical measurement needs. Independently of your measurement system and application you should be…
Acoustic Calibrators

Calibration can be performed at either 250 Hz or at 1 kHz. Both frequencies have their advantages and disadvantages. 250 Hz is in the frequency…
Acoustic Fixtures

Test fixtures for NVH evaluation, ear- and headphone testing, hearing-protector testing and telephone testing GRAS’ test fixtures are top of the line solutions to fulfill…



