Photograph of DSG at Mona Island, Puerto Rico by Michelle Scharer


Underwater acoustic dataloggers are used to record sounds and measure noise in aquatic environments

We work with you to identify the best instrument for your application, whether it is recording ambient sound on a coral reef or the intense sounds from underwater construction.  Each recorder has a hydrophone for capturing underwater sounds as electrical signals and a datalogger that stores the sounds on flash memory.

  • noise monitoring from wind turbines, pile driving, seismic surveys

  • marine mammal monitoring

  • fish vocalization

  • ocean soundscapes



The Snap underwater acoustic recorder harnesses over 20 years of experience in marine bioacoustics to deliver the world's easiest to configure underwater acoustic datalogger. The Snap was designed to be setup without a computer and records sounds directly as wav files. The Snap is perfect if you are just getting started with bioacoustics or want to up your game to deploy large arrays of recorders.

LS1 Multi-card Recorder

The LS1 builds on the simplicity of the Snap, with 4x the battery capacity and memory card storage.


MEDUSA Acoustic drifter

Medusa is the world’s first satellite-connected acoustic drifter. Medusa transmits location, summary noise metrics, and animal sound detections to a cloud database. Medusa can be recovered, recharged, and reused.


LHC Cyclops

The LHC Cyclops camera combines a scientific quality audio recorder with an HD camera to give up to 1 month audio and video recordings with a 10% duty cycle.



DSG: DSG setup (DSGschedule, DSGrecover, DSG2WAV)