GRAS 43AB 1/2'' 2cc Coupler Kit According to IEC 60318-5

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The GRAS 43AB Artificial Ear is a complete test jig for acoustical measurements of hearing aids in accordance with IEC 60318-5 (60126) and ANSI S3.7 -1995 on insert type hearing aids in accordance with:
  • IEC 60318-5 (60126) reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts.
  • ANSI S3.7-1995 American National Standard for Coupler Calibration of Earphones.

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GRAS 43AB 1/2'' 2cc Coupler Kit According to IEC 60318-5

The GRAS 43AB Artificial Ear is a complete test jig for acoustical measurements of hearing aids in accordance with IEC 60318-5 (60126) and ANSI S3.7 -1995 on insert type hearing aids in accordance with:
  • IEC 60318-5 (60126) reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts.
  • ANSI S3.7-1995 American National Standard for Coupler Calibration of Earphones.

The 43AB comprises:

The Test Jig has an adjustable spring-loaded arm to exert a variable force on the test object.