| Terminal | Wire | |
| Housing material | Aluminium | |
| Center frequency | KHz | 40±1.0 |
| Transmitting S.P.L. | dB | >95 |
| Receiving Sensitive | dB | >-82 |
| Directivity X-axis | Deg | 90±15 |
| Directivity Y-axis | Deg | 70±10 |
| Capacitance | PF | 1.800±20% |
| Allowable Input Voltage | Vp-p | 140 |
| Operating Temperature | °C | -40~+80 |
| Storage Temperature | °C | -40~+85 |
