It is designed for the study and measurement of hearing loss through the air sound transmission channel when used together with audiometers according to ГОСТ 2702-86 and МЭК 645-1.
Suitable for operation at temperatures from 10 to 45 ° C and at high relative humidity up to 90 % at 25 ° C.
| Operating frequency range, Hz |
100 – 8000 |
| Sound pressure level at a frequency of 500 Hz, not less than, dB |
111 |
| The module of the total electrical resistance of each telephone capsule at a frequency of 1000 Hz, Ohm |
100 ± 10 |
| Weight, no more |
250 г |
