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| Item | TO0139-000(T) | TO0140-000(R) | |
| Center Frequency | 40.0±1.0 KHz | 40.0±1.0 KHz | |
| Sound Pressure Level | ≥117 dB | --- | |
| Sensitivity | --- | ≥-67 dB | |
| Beam Angle | 90°typical | | |
| Capacitance | 2200±20% pF | | |
| Working Temperature | -40℃~+85℃ | | |




