Hydrophone Systems for
Research and Professional Audio applications

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Cetacean Research Technology began manufacturing hydrophones originally for the research and professional audio community in 1994. We continue to offer a vast range of hydrophone systems designed to meet the demanding requirements of underwater acousticians, oceanographers, marine mammal scientists, fisheries biologists, audio engineers, fine artists, and anyone else requiring impeccable audio quality and a very broad frequency response. Because there are so many possible hydrophone system combinations, only our more common systems are listed on this page.

If you don’t see a system that meets your needs, please contact us and we will help put together the best hydrophone system for you.


photo of the C75-DR100 hydrophone system

C75-DR100 hydrophone system

The Cetacean Research C75-DR100 hydrophone system consists of our ultra-wide bandwidth, omnidirectional Cetacean Research C75 hydrophone and aTASCAM DR-100 more


photo of the C75-DR100-SP hydrophone system

C75-DR100-SP hydrophone system

The Cetacean Research C75-DR100-SP noise measurement system consists of of our ultra-wide bandwidth, omnidirectional Cetacean Research C75 hydrophone, aTASCAM DR-100 recorder and SpectraPLUS analysis software more


photo of the C57-DR100 hydrophone system

C57-DR100 hydrophone system

The Cetacean Research C57-DR100 hydrophone system consists of our top-end, low noise Cetacean Research C57 hydrophone and a TASCAM DR-100recorder more


photo of the C57-DR100-SP hydrophone system

C57-DR100-SP hydrophone system

The Cetacean Research C57-DR100-SP noise measurement system consists of our top-end, low noise Cetacean Research C57 hydrophone , a TASCAM DR-100recorder and SpectraPLUS analysis software more


photo of the C75-200-SP hydrophone system

C75-200-SP hydrophone system

The Cetacean Research C75-200-SP underwater sound analysis and noise monitoring system consists of our ultra-broadband, omnidirectional, calibrated Cetacean Research C75 hydrophone, theSpectraDAQ-200 calibrated USB computer interface, and SpectraPLUS analysis software more


photo of the CR3-200-SP hydrophone system

CR3-200-SP hydrophone system

The Cetacean Research CR3-200-SP noise measurement system consists of a calibrated, broadband, omnidirectional Cetacean Research CR3 hydrophone, the SpectraDAQ-200 calibrated USB computer interface, and SpectraPLUS analysis software more


photo of the CR1-200-SP hydrophone system

CR1-200-SP hydrophone system

The Cetacean Research CR1-200-SP noise measurement system consists of a calibrated Cetacean Research CR1A hydrophone, theSpectraDAQ-200 calibrated USB computer interface, and SpectraPLUS analysis software more


photo of the C57-2x2 hydrophone system

C57-2x2 hydrophone system

The Cetacean Research C57-2x2 hydrophone system consists of our top-end, low noise Cetacean Research C57 hydrophone and a TASCAM US-2x2 USB Audio/MIDI Interface more


photo of the C57-PAS hydrophone system

C57-PAS hydrophone system

For those who want the very best hydrophone system for whale watching, the C57-PAS is the system used by National Geographic Explorer / Lindblad Expeditions more


photo of the CR1-UDP hydrophone system

CR1-UDP hydrophone system

The CR1-UDP underwater listening system includes the low-noise, multi-purpose Cetacean Research CR1 hydrophone and the USB Dual Pre high quality dual portable preamplifier. A portable recorder can be added more


photo of the SQ26-H1 hydrophone system

SQ26-H1 hydrophone system

The portable SQ26-H1 is the most compact underwater recording system that exists. Although this system was originally designed for recreational use, the hydrophones are calibrated and the broad frequency response of this system means it is well suited for students and scientists looking for a cost-effective underwater recording solution more


photo of the C56-DR680 hydrophone system

C56-DR680 hydrophone system

The Cetacean Research C56-DR680 hydrophone system consists of our low noise, in-line Cetacean Research C56 hydrophones and a TASCAM DR-680 multi-track recorder more


photo of the C56-DR680-SP hydrophone system

C56-DR680-SP hydrophone system

The Cetacean Research C56-DR680-SP hydrophone system consists of our low noise, in-line Cetacean Research C56 hydrophones, a TASCAM DR-680multi-track recorder and SpectraPLUS analysis software more


photo of nRUDAR-mk2 system

nRUDAR-mk2™

The Cetacean Research nano Remote Underwater Digital Acoustic Recorder (nRUDAR-mk2™) is a hand-held, very compact, short-term, autonomous underwater recording device with more than 4 days of continuous recording time more


drawing of the µRUDAR-mk2&™ system

µRUDAR-mk2™

The Cetacean Research µRUDAR-mk2™(micro Remote Underwater Digital Acoustic Recorder) is a compact, autonomous recording device that is designed for fast and easy deployment, with more than 16 days of continuous recording time more


photo of a RUDAR prototype deployed

RUDAR™

Cetacean Research RUDAR™ (Remote Underwater Digital Acoustic Recorder) is a compact, long-term autonomous recording device that is light enough to be deployed by hand from small boats. more


photo of the Acousonde hydrophone system

Acousonde™

The Acousonde™ is specifically designed for application as a cetacean tag. It is a self-contained underwater acoustic recorder comprised of one (or optionally two) hydrophones and is temporarily attached to cetaceans with suction cupsmore




SpectraPLUS software can be added to any of the systems which do not already include it.