P11 is a hydrophone for monitoring of high frequency water shock waves that affects fish farms and other extremely sensitive objects under water. 

• Measurement range: 0-100 kPa.
• Frequency range: 10 Hz to 5 kHz.
• Sampling rate 35 kHz.
• Measures both maximum pressure and maximum impulse density as two interval chanenels and when triggered pressure event is recorded.

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