Do you have a question about the Garmin GPSMAP 421 and is the answer not in the manual?
Sport (fitness, running) | No |
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Marine (chartplotters, sounders) | Yes |
Routes quantity | 100 |
Tracks quantity | 50 |
Number of waypoints | 3000 |
Map storage | Internal storage |
Map view options | 3D |
Form factor | Fixed |
Display diagonal | 4 \ |
Display resolution | 240 x 320 pixels |
Display size (HxV) (imperial) | 2.4 x 3.2 \ |
I/O ports | NMEA 0183, 2000 |
Depth | 69 mm |
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Width | 145 mm |
Height | 127 mm |
Weight | 590 g |
Follow precise instructions for template dimensions and paper size to avoid incorrect cutouts on your boat's mounting surface.
Set Page Scaling to 'None' and enable 'Auto-Rotate and Center' for accurate template printing.
Verify printed template length and width match actual mount size before cutting to prevent errors.