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The GPSMAP 188 —available in 

grayscale or sunlight-readable color 

display— and the GPSMAP 238 are 

powerful dual frequency sounders. 

They feature exceptional resolution, 

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.

Detailed chartplotter and sounder capabilities in one

GPSMAP

®

188/188C and 238 Sounder

WITH W

AAS

for even greater accuracy

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