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Shown with optional

anodized aluminum

case for 500 m depth

Biofouling protection for long-duration deployments

Designed to attach to a HydroScat-2 backscattering sensor, the HydroShutter-HS deploys a copper plate in front of the instrument windows.  A suitable-equipped HydroScat-2 powers the motor at appropriate times to uncover or cover its windows as it collects data or sleeps.  Like the HydroShutter-HR, it is also suitable as a submersible actuator for other applications.

  • Simple interfacing: apply 9 to 15V to activate; reverse polarity to change direction
  • Smart controller stops motion at preset limits
  • Low power: draws power only when in motion--only a few seconds per actuation
  • Range of motion 70 degrees nominal.  Other ranges upon request.
  • Copper blade is user-replaceable for special applications
  • Acetal plastic case for depths up to 150 m
  • Anodized aluminum case available for 500 m depth rating



  • HydroScat-2
  • Underwater cameras
  • Custom sensors
  • Moorings


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All specifications subject to change without notice.