Type 4185 Ear Simulator for Telephonometry (Type 1 coupler)

Ear Simulator for Telephonometry Type 4185 is designed for measurements on handset telephones, including handsets with high impedance earpiece where sealed conditions are required. Type 4185 fulfills the requirements of the ITU–T P.57 Type 1 recommendation and the IEC 60318 standard.

Includes the following accessories in wood box:
Type 4192: 1/2" Condenser Microphone / Pressure-field Microphone, 3 Hz to 20 kHz, 200V Polarization
Type 2669: 1/2" Microphone Preamplifier
AO‐0122‐D‐030: Cable, Super Low Noise for Sound Source, 10-32 UNF (m) to 10-32 UNF (m), 3 m
AO‐0419-D-030: Cable, for Microphone, LEMO-1B 7-pin (m) to LEMO-0B 7-pin (f), 3 m
BC-0254: Calibration Chart
BC-5003-C: Coupler Data Disk
DB‐1164: Adaptor Sleeve for IEC Coupler, 1"
JP‐0145: BNC Adaptor BNC (m) to 10-32 UNF (f)
UA‐1110: Acoustic Coupler for 4185
YJ-0431: 4 Soft Seal for Acoustic Coupler

You WILL receive what is pictured!!
DB‐1160: Ring for Acoustic Coupler
ZG-0350: Adaptor, spec B&K 7-pin (m) to Circular 7-pin (f) Socket JJ-0744