The G.R.A.S. RA0052 is for use with G.R.A.S. couplers and artificial ears. It has an adjustable spring-loaded arm to exert a variable force on the test object.
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.