icListen Smart Hydrophone     

Flexible enough to use as an acoustic recorder, digital hydrophone, real-time acoustic event detector, or all three at once.

Small enough to carry in one hand, allowing you to deploy with smaller craft, or from autonomous vessels.

Smart enough to be combined into simple or complex digital hydrophone arrays.

Acoustic Instruments

icListen HF Broadband General Purpose Up to 200 kHz
icListen AF Audio & Very Low Frequency Up to 12 kHz
icTalk HF Smart Calibrated Projector Up to 200 kHz




Hydrophone Software

For PC
Battery Packs Subsea, easy to use Alkaline or Li Primary
Arrays Hubs & Host Controllers
Cables Extension and ‘Smart’ Up to 100 m



Some Uses of the icListen

  • Ocean Noise Measurement
  • Pile Driving
  • Marine Mammal Monitoring
  • Ocean Observation
  • Environmental Monitoring
  • Offshore Energy Operations
  • Marine Renewable Energy
  • Tidal Energy
  • Wave Energy
  • Offshore Wind Farms
  • Ocean Observatories
  • Earthquake & Tsunami Monitoring
  • Subsea Volcano Detection
  • ROV’s & AUV’s
  • Harbor Security
  • Pipeline Leak Detection
  • Fisheries Research
  • Arctic Ice Monitoring


Are the Instruments Calibrated?

A purchase of any of our HF hydrophones includes a certificate of calibration (in-air from manufacturer and in-water from Ocean Sonics). We provide certificates of calibration (26 Hz in air, 10 to 200 kHz in water) for all our hydrophones, included in the purchase price. Low-frequency Hydrophones come with a calibration certificate (single point in air) and can be calibrated in water for an extra cost by Oceans Network Canada (ONC) or National Physical Laboratory (NPL).



Product Family Brochure
"We have been working with Ocean Sonics in our technology demonstration program since the first prototypes. Our science users have been very impressed with the very high quality data sets. Ocean Networks Canada is expanding our hydrophone network with Ocean Sonic icListen HF smart hydrophones across our observatory including new sites across coastal BC, as part of the Smart Oceans™ program. The compact size, Ethernet interface, high reliability and exceptional performance make these systems ideal for ocean observing applications such as mammal classification, vessel and ambient noise studies. "

Scott McLean,Director, Ocean Networks Canada Innovation Centre