Garmin GPSMAP 86sciStay on course with the GPSMAP 86sci handheld. It provides all the outdoor functions and global communications of the GPSMAP 66 series and adds on the water features including BlueChart g3 charts and wireless connectivity to your onboard marine system. When youre underway, an adjustable GPS filter smooths speed and heading indications as you pass over swells for more accurate tracking. Navigate anywhere with ABC sensors, including an altimeter for