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40KHz Long Range Ultrasonic Transmitter And Receiver
Specification
| Item | Transmitter | Receiver |
| Center frequency | 40±1.0KHz | |
| SPL | ≥115dB | ------- |
| Sensitivity | ------- | ≥-65dB |
| Directivity | 70° | |
| Capacitance | 2300±25%pF | |
| Housing material | Aluminum or Plastic | |
| Driving Voltage | ≤30Vrms | |