Cetacean Research µRUDAR-mk2™
micro Remote Underwater Digital Acoustic Recorders

The Cetacean Research µRUDAR-mk2™ (micro Remote Underwater Digital Acoustic Recorder) is a very compact, short-term, autonomous recording device that is designed for fast and easy deployment in a wide range of applications.

Uses of the µRUDAR-mk2™ range from remote detection of methane bubbles to recording wild cetacean vocalizations for periods of more than sixteen days.

This easy-to-use recording system can be deployed to depths of up to 100m and will provide more than 5 days of continuous 24-bit, 96kHz sample-rate data acquisition, and up to 16.5 days at 16-bit/44kHz sample-rate.

As with the nRUDAR-mk2™, the µRUDAR-mk2™µRUDAR-mk2™ uses the same hydrophone element and preamplifier as our Sensor Technology SQ26-08 hydrophone along with a 24-bit, 96kHz digital recorder.

  • Exceptionally easy to use
  • WiFi recording control and file transfer capabilities.
  • Up to 24-bit/96kHz sample rate and 45kHz bandwidth
  • Up to 16.5 days continuous recording time: 8x longer than original μRUDAR™.
  • 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
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Cetacean Research µRUDAR-mk2™


Cetacean Research µRUDAR™


Cetacean Research µRUDAR™


original µRUDAR™ with ruler showing its compact size

original original µRUDAR™ with ruler

model demonstrating how light and compact the original µRUDAR™ device was...
...so easy to use, a 5-year-old could handle it!

original µRUDAR™ with model

an 8-year old model demonstrating how light and compact the 2012 model of µRUDAR™ device was.

µRUDAR™ with model

also see Cetacean Research  nRUDAR-mk2™