UNDERWATER PASSIVE ACOUSTIC RECORDERS

Snap

Low-cost, light, easy to use

  • Easy to configure with a few button settings

  • Field ready with no computer needed to record or recover data

  • Quickly redeploy, just swap batteries and insert a new SD card

  • Data saved as wav files

  • Travels well with no restricting lithium batteries, just bring standard D-cell batteries or purchase at deployment site; or choose our rechargeable Li-ion battery

  • Small, light PVC housing with snap-on lids

  • Includes HTI-96-min hydrophone

  • Fast delivery, usually ships in days, not months

500m depth rated PVC
128 GB or 256 GB microSD
D-cell option:
10 days continuous recording, 60 days with 10% duty cycle
Li-ion option:
20 days continuous recording, 125 days with 10% duty cycle

Learn more about the Snap

LS1 & LS2 Recorders

Longer deployments

  • Built on the simplicity of the Snap, with the same easy, fast set-up and data recovery

  • Travels well with no restricting lithium batteries, just bring standard D-cell batteries or purchase at deployment site; or choose our rechargeable Li-ion battery

  • For longer deployments, with more battery capacity than the Snap

  • Available in one channel (LS1) or two channel, stereo (LS2)

  • Includes one or two HTI-96-min hydrophone(s) and vent plug

  • Optional mounting brackets available

  • Fast delivery, usually ships in days, not months

300m depth rated PVC
1 TB microSD
D-cell option:
40 days continuous recording, 240 days with 10% duty cycle
Li-ion option:
60 days continuous recording, 360 days with 10% duty cycle

Learn more about the LS1 and LS2

LS1X-Al and LS2X-Al Recorders

Even longer & deeper deployments

  • Longer housing length than the LS1 allows for more D-cell battery capacity for longer deployments; ask about Li-ion capability

  • Anodized aluminum housing for deeper deployments

  • Available in one channel or two channel for stereo recording

  • Includes one or two HTI-96-min hydrophone(s) and vent plug

  • Optional mounting brackets available

  • Fast delivery, usually ships in days, not months

3,000m depth rated anodized aluminum
1 TB microSD
80 days continuous recording, 480 days with 10% duty cycle

Ask about Li-ion option on these recorders!

Learn more about the LS1X and LS1X-Al

ML4X: Four Channel Recorder

Create an array with one device

  • Same length as the LS1X-Al, but with PVC housing

  • Uses rechargeable Li-ion batteries

  • Includes four HTI-96-min hydrophones and vent plug

  • Optional mounting brackets available

300m depth rated PVC
1 TB microSD
50 days continuous recording, 440 days with 10% duty cycle

Contact us to learn more about the ML4X recorders

LHI-CAL Calibration Tool

Hydrophone calibration

  • Works with any Loggerhead-provided HTI-96-min hydrophone

  • Includes sound calibrator with a coupler

  • Generates calibration-quality tones at 250 Hz and 1000 Hz at two sound levels

  • Allows rapid collection of calibration signals prior to and after deployments of Loggerhead’s acoustic dataloggers

Contact us to learn more about the LHI-CAL Tool

Compare these product features to determine which is best for your project.
Please contact us with additional questions, and for current prices and estimated delivery times.

To calculate the expected run time for your specific application, please download our
Run Time Calculator.

  • Monitor offshore noise and soundscapes.

  • Conduct basic research and diversity monitoring.

  • Record vocalizations from species of interest.

  • Discover previously unrecorded species.

  • Capture underwater soundscapes.

Contact us for pricing