Autonomous Hydrophone Systems and Acoustic Tags

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Cetacean Research Technology offers two types of autonomous underwater recording instruments. The first type, manufactured by CRT, is the Remote Underwater Digital Acoustic Recorder (RUDAR™). The second type is the Acoustimetric Acousonde™, which is a suction cup attached acoustic tag for cetaceans. All of our autonomous underwater recording systems are designed for easy use and have field replaceable batteries.


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™ 3B 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 cups more




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