The SS03-xx Sea-Phone

This is a general purpose hydrophone ideal for whale watching and full audio-band signal detection.
It can also be used as a contact microphone or low cost geophone.
The Sea-Phone is a great kayaking hydrophone and a wonderful recreational boating accessory.
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  • Kayaking
  • Recreation
  • Tourism
  • Environmental science & research
  • Educational outreach programs


Frequency Range [kHz]: 0.030 to 30
Transducer Sensitivity* [dB, re 1V/µPa]: -194
Preamplifier Gain [dB]: 25
Effective Sensitivity (Transducer Sensitivity + Preamplifier Gain) [dB, re 1V/µPa]: -169
SPL Equiv. Self Noise at 1kHz [dB, re 1µPa]: to be determined
Power Requirement [Vdc]: 9V single standard battery
RMS Overload Acoustic Pressure [dB, re 1µPa]: 147 to 154
Maximum Operating Depth [m]: 100
Operating Temperature Range [ºC]: -25 to 60
Dimensions [mm]: 70 L x 32 dia.
Shielded Cable Length [m]: 10 meters (SS03-10) or 30 meters (SS03-30), cable includes 1/4" stereo phone plug
Directionality: omnidirectional below 10kHz
Battery / Connector box: Conformally coated circuit board. Water resistant electronics. Standard signal connection for the Sea-Phone SS03-10 hydrophone is through a 3.5mm stereo phone jack. The hydrophones are powered by a single 9V battery (not included).
Signal / Headphone Output: 3.5mm stereo phone jack
Battery Life [hours]: 18
Adjustable Gain at the headphone amplifier: 0 - 30 dB
Amplifier Console / Power Box Dimensions [cm]: 12.2 long x 6.6 wide x 2.8 high

SSO3-10, the hydrophone, cable and headphone driver setup.

SS03-10 Sea-Phone Frequency Response