Hydrophone, also known as underwater microphone, is the underwater sound signal into the electrical signal transducer. According to the principle of action, principle of energy exchange, characteristics and structure, there are sound pressure, vibration speed, no direction, direction, piezoelectric, magnetostriction, electric and other hydrophone categories.

The built-in data conversion module of hydrophone translates the acoustic signal into Ethernet transmission, which facilitates the integration of hydrophone array system.