The LS1 underwater acoustic recorder makes it easy to setup, deploy, and handle acoustic recordings. Its compact design and use of alkaline D cells means travel with the LS1 is easy.

  • Easy to Configure
    • Set record duration and sleep interval
    • Push button interface and OLED display
    • No computer required
  • Huge Data Capacity
    • 4 microSD slots allow you to collect up to 1 TB of data
  • Simple Output
    • Recordings stored as wav files
    • Card and batteries can be replaced in the field for rapid turnaround


  • Marine mammal monitoring
  • Noise monitoring
  • Fish sound mapping

Run Time

LS1 Recording Table.png


  • Sample rate: 44,100 Hz
  • Memory card: 128 GB microSD (possible expansion to 4 x 256 GB)
  • Hydrophone: HTI96-min
    • Ocean Sound Monitoring: -170 or -180 dBV/uPa
    • Noise Monitoring (seismic, pile driving): -210 dBV/uPa
  • Power: 12 alkaline D-cell batteries
  • PVC
    Dimensions: 17″x4.5″ diameter tube
    Power: 4 alkaline D-cell packs
    In-air weight: 8 pounds (without batteries)
    Seawater weight: 6.3 pounds positive (without batteries)
    Depth Rating: 300 m
  • Aluminum
    Dimensions: 25"x4.5" diameter tube
    Power: 8 alkaline D-cell packs
    In-air weight: 17 pounds (without batteries)
    Seawater weight: 3 pounds negative (without batteries)
    Depth Rating: 3,000 m


Specification Sheet

Formatting microSD cards greater than 32 GB