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.

• nRUDAR-mk2™ has auto mark and record features that make it an excellent tool for recording high resolution audio for underwater video production.
• nRUDAR-mk2™uses the same hydrophone element and preamplifier as our Sensor Technology SQ26-08 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 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!