Giving our oceans a voice

icListen Smart Hydrophones:

icListen is the most reliable, intelligent and user-friendly hydrophone available. Understanding ocean sound has never been easier.

The icListen Smart Hydrophone is used around the world as the standard for acoustic monitoring, streaming and hydrophone arrays. Understanding ocean sound has never been easier with the icListen and our data analysis services. Our users have even said "the icListen Smart Hydrophone is fun to use." Trust icListen to give you accurate, reliable, high-quality data.

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Ocean Sonics Attending CANSEC 2025

Ocean Networks Canada performed a wide range of tests on the hydrophones prior to deployment to verify the manufacturer’s specifications. The hydrophone instruments met all the manufacturer’s specifications and were easy to use. Both models satisfy our requirements for dynamic range, sensitivity and, most importantly, reliability. When coupled with the fast and friendly customer support we have received, these LF and HF hydrophones are a good choice for our ocean observatory.

Tom Dakin
Ocean Networks Canada

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 (former)
Ocean Networks Canada

I have used many different hydrophones on different systems, but these icListen hydrophones are the best I’ve seen in many years. They’re calibrated to very low frequencies where I’ve never been able to get reliable data.

Ross Chapman
Professor Emeritus
University of Victoria

The Ocean Observatories Initiative (OOI) Regional Scaled Nodes (RSN) had requirements for very broadband hydrophones with good noise floor characteristics and a wide dynamic range. The icListen HF hydrophones satisfied these requirements at a reasonable cost. The hydrophones were quite easy to use out of the box, and easily passed our intensive First Article tests centered on assuring any instrument will not interfere with or corrode any other instrument. Customer support has been quite good, with very detailed questions answered quickly and accurately.

TSkip Danny
Principal Ocean Engineer, RSN
Applied Physics Lab, University of Washington

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icListen Smart Hydrophones:

icListen is the most reliable, intelligent and user-friendly hydrophone available. Understanding ocean sound has never been easier.

About the icListen Hydrophone

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