HY-01 is a Omni Directional passive Piezoelectrical Hydrophone

Application; Mammal/whale sound listening/recording Detect marine mammals for conservation & research Environmental science & research High frequency underwater communication, we can tune the piezo to specific frequency on request! Contact to us for more info! Geophone Kayaking Education

Specification: Frequency range (-3dB) 20Hz to 100kHz Transducer Sensitivity* [dB, re 1V/µPa] -185 Maximum Operating Depth (tested) 100m Output impedance >10 Mohm (piezo)
For best results use amplifier with high input impedance >1 Mohm, like HY-11 Operating Temperature Range -15°C to +50°C Cable length about 3 m (other lenghts on request) Connector 3.5mm phono mono (or stereo)