Underwater Acoustic Solutions

Professional hydrophones and underwater acoustic systems for marine research, industrial monitoring, field recording, whale watching, and scientific applications.

Trusted worldwide for reliable performance, expert guidance, and fast fulfillment.

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Jacques de Vos is an award-winning underwater photographer and cameraman using an Aquarian Hydrophone. See more at jdvos.com

Why Aquarian?

Trusted worldwide for underwater acoustics since 1998.

Proven Across Industries

Referenced in hundreds of academic publications and used worldwide in scientific, industrial, educational, and professional applications.

Built for Real Deployments

Reliable hydrophones and underwater acoustic systems designed for marine environments, field recording, and long-term use.

Expert Guidance

Direct support for compatibility, deployment methods, recorder selection, and custom configurations.

Fast Global Fulfillment

Many products ship immediately to over 220 countries. We also support custom applications and specialized configurations quickly.

Product Categories

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Hydrophones

Hydrophones 10

From simple listening hydrophones to broadband scientific sensors.

Electronics 21

Portable field recorders, USB audio interfaces, pre-amplifiers and adapters.

Cable and Connectors 22

Custom length cables, adapters, and connectivity accessories.

Accessories 5

Adapters, weights, mounts, deployment tools, and supporting hardware.

New to Underwater Audio?

Our ready-to-use listening kits include everything needed to begin recording or monitoring underwater sound quickly.

All Kits
Whale Watch Listening Kit

Whale Watch Listening Kit

A simple, ready-to-use kit for live underwater listening.
From $232.99
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Whale Watch Listen and Occasionally Record

Whale Watch Listen and Occasionally Record

A simple, ready-to-use kit for live underwater listening and occasional recording.
From $413.97
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Whale Watch Record & Listen Kit

Whale Watch Record & Listen Kit

High-quality recording and listening to underwater sound in real time through your speaker or PA system.
From $414.99
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Best selling hydrophones

S1 Hydrophone Standard Body S1 Hydrophone Standard Body

S1 Hydrophone Standard Body

Ultrasonic uniform frequency response. Multiple integrated signal conditioning options.
From $417.00
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H2d Hydrophone H2d Hydrophone

H2d Hydrophone

General purpose listening hydrophone. Durable. Self-weighted. Conveniently powered by microphone input power.
From $220.00
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A5 Hydrophone A5 Hydrophone

A5 Hydrophone

Compact, modular hydrophone with integrated signal conditioning. Uniform response to 10 kHz.
From $190.00
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H1a Hydrophone H1a Hydrophone

H1a Hydrophone

Passive general purpose listening hydrophone, durable, self-weighted. Works directly with instrument amplifiers or similar High-Z inputs.
From $182.00
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