G.R.A.S. is an ISO 9001:2008 certified company in the field of high-quality measurement microphones and related acoustic equipment. Found in 1996 by Gunnar Rasmussen, G.R.A.S. is a family owned business focused on providing only the best quality and most precise microphones and acoustic calibration equipment for their customers' measurement needs.
G.R.A.S. aims to offer the most advance and durable microphone solutions in the industry. For assured quality, G.R.A.S. products go through a series of “Highly Accelerated Life Tests” (HALT Testing) that test simulate day to day handling and real life situations. It includes impact, vibration, humidity and temperature stress tests to ensure product reliability, stability and robustness when in use.