For more than 20 years, we have been at the forefront of developing measurement microphones, and this knowledge is constantly used to offer you state-of-the-art calibration and service. We are proud of G.R.A.S. being the world-leader within service and support of measurement microphones. 

When you buy a G.R.A.S. microphone, you not only buy the market’s most durable measurement microphone, you also make an investment for the future.
Through our worldwide distribution network, we are able to offer you service and calibration almost anywhere. G.R.A.S.’ partners can help you with complete product solutions and can also offer you accredited calibrations and service.
At G.R.A.S. we offer you a 5-year warranty on all our microphones. 
If your microphones are not covered by the warranty, please contact your local G.R.A.S. distributor.

Microphone Service Flyer

Acoustic Calibration Equipment Brochure