Cetacean Research nRUDAR-mk2™
nano Remote Underwater Digital Acoustic Recorders

The  Cetacean Research  nano Remote Underwater Digital Acoustic Recorder (nRUDAR-mk2™) is a hand-held, ultra compact, short-term, autonomous underwater recording device that is designed for a wide range of applications. Uses vary from manual underwater recording while diving to autonomously recording wild cetacean vocalizations for several days continuously.

  • Exceptionally easy to use
  • WiFi recording control and file transfer capabilities.
  • Up to 24-bit/96kHz sample rate and 45kHz bandwidth
  • Up to 4.5 days continuous recording time: 13x longer than original nRUDAR™
  • BWF file format for easy editing and analysis using SpectraPLUS software
  • Threshold-triggered recording feature
  • Selectable file size rollover from five minutes to one hour
  • Hydrophone sensitivity of -169dB, re. 1V/μPa
  • 100m depth rating

See the photos of µRUDAR™ to see just how small and portable these powerful autonomous underwater recording devices are!

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Joe Olson, President of Cetacean Research Technology, using nRUDAR™ and the Acousonde 3A in July 2012; with Denise Herzing of The Wild Dolphin Project. See our YouTube channel for more hydrophone-related videos

Cetacean Research nRUDAR-mk2™

photo of a nRUDAR-mk2

photo of Cetacean Research nRUDAR™

photo of nRUDAR

photo of Cetacean Research nRUDAR™

photo of nRUDAR

also see Cetacean Research  µRUDAR-mk2™