Garmin GPSMAP 188 Specifications

The GPSMAP 188 —available in
grayscale or sunlight-readable color
display— and the GPSMAP 238 are
powerful dual frequency sounders.
They feature exceptional resolution,
Detailed chartplotter and sounder capabilities in one
fast redraw rates and split-screen
capability so you can view your
position and sounder information
at the same time. These units are
WAAS capable for 3-meter accuracy,
have built-in worldwide basemaps
with coastline detail, U.S. tide data
and inland features. They also accept
optional data cards with GARMIN's
exclusive BlueChart ™ marine
cartography for additional detail.
GPSMAP ® 188/188C and 238 Sounder