The G.R.A.S. RA0009 is an adapter for calibrating the Outdoor Microphone System G.R.A.S. 41AM. It fits over the rain protection cap of the G.R.A.S. 41AM and permits in-situ calibration using a Pistonphone such as the G.R.A.S. 42AA, 42AP or a Sound Level Calibrator such as the G.R.A.S. 42AB.
The adapter is marked with a serial number and is delivered with correction factors.
Quality & Warranty
G.R.A.S. accessories are made of stainless steel, alloys and high-quality composites. These items are covered by a 2 year warranty respecting their intended use.
On consumables like batteries, cables and windscreen we offer a 6 month warranty.