GRAS RA0042 Coupler for two-port Calibration

GRAS RA0042 Coupler for two-port Calibration



The GRAS RA0042 coupler has ports for two 1/2" microphones  for comparison calibrations between two microphones; one of which is a reference microphone. It can also be used in measuring the P-I (Pressure-Intensity) Index of intensity probes at 250 Hz. For use with GRAS 42AC Pistonphone.


A similar coupler for GRAS 42AA and 42AP is available. This is the GRAS RA0024.

Quality & Warranty

GRAS 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 windscreens we offer a 6 month warranty.

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