Brand G.R.A.S
Type Ear Simulator
Model 4751
Country of Origin Denmark

Check the listing for details. GRAS RA0045 Externally Polarized Ear Simulator According to IEC 60318-4 (60711). Condition: Used, Made in Denmark. Listed at 259.95 USD. …The GRAS RA0045 is an ear simulator with an acoustic input impedance closely resembling that of an average human ear.

$129.98
$259.95