Skipper's Locker

Airmar DST 810 Smart Transducer, Thru-Hull NMEA 2000

Brand:
Garmin
Part no:
010-11051-20

Where to buy

Specifications

Mount
Thru-hull
Material
Plastic
Frequency
235
Connector
NMEA 2000

The Airmar DST 810 is a plastic thru-hull NMEA 2000 smart transducer that reports depth, speed and temperature. It reads depths to 330 ft and outputs water speed at 5 Hz. It runs at 235 kHz and has a fan-shaped beam of 10x44 degrees, wide enough to find bottom on steep deadrise hulls or a heeling sailboat. Calibration is managed over Bluetooth. It is not a transom mount.

Our take

The 10x44 degree fan-shaped beam is the feature to note, since it is wide enough to find bottom on steep deadrise hulls or a heeling sailboat. As a thru-hull unit it is not for transom mounting, so it needs a hole in the hull.

From our buying guide

Raymarine's general guidance is 200 kHz for water under about 60 m (200 ft) and 50 kHz for deep water. In-hull transducers avoid a hole, but lose performance and need a solid fiberglass bottom.

Check before you buy:

  • The housing suits your hull. Airmar and Raymarine rule out plastic on a wood hull and bronze on a metal one.
  • It connects to your display, since an analog transducer needs an interface.
  • A through-hull will be fitted to the maker's guide. Garmin says its own should be installed by a qualified marine installer.

Sources