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Marine GPS
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Garmin GPSMAP 421s Sounder with Dual Frequency Transducer
Model: 010-00764-01
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Ships with: GPSMAP 421s Sounder, Dual Freq Transducer Depth Temp Plastic Kit, GPSMAP 420 and 430 Power and Data Cable, GPSMAP 420 and 430 Cover, GPSMAP 420 and 430 Marine Swivel Mounting Bracket
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$439.95
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| General | | | | |
| 1 | Unit dimensions, WxHxD: | 5.7in x 5.0in x 2.7in (14.5 x 12.7 x 6.9 cm) | | | |
| 2 | Display size, WxH: | 2.4in x 3.2in, 4.0in diagonal (6.1 x 8.1 cm, 10.2 cm diagonal) | | | |
| 3 | Display resolution, WxH: | 240 x 320 pixels | | | |
| 4 | Display type: | QVGA display | | | |
| 5 | Weight: | 1.3 lb (590 g) | | | |
| 6 | Battery: | none | | | |
| 7 | Battery life: | none | | | |
| 8 | Waterproof: | 
(IPX7) | | | |
| 9 | GPS-enabled: |
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| 10 | High-sensitivity receiver: |
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| 11 | PC interface: | None | | | |
| 12 | Ability to add maps: |
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| 13 | Bluechart g2 Map Compatible: |
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| 14 | Bluechart g2 Vision Map Compatible: |
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| 15 | Accepts data cards: | SD data card | | | |
| 16 | Waypoints/favorites/locations: | 3000 | | | |
| 17 | Additional: | N/A | | | |
| Automotive | | | | |
| 18 | Routes: | 100 | | | |
| 19 | Basemap: |
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| 20 | Antenna Type: | Internal | | | |
| 21 | External Antenna Jack: | BNC | | | |
| Outdoor | | | | |
| 22 | Track log: | 10,000 points; 50 saved tracks | | | |
| 23 | Tide tables: |
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| Marine | | | | |
| 24 | Marine Auto Guidance |
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| 25 | Sonar compatible |
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| 26 | Supports AIS (tracks target ships' position) |
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| 27 | Supports DSC (displays position data from DSC capable VHF radio) |
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| 28 | Audible alarms |
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| 29 | XM WX Weather & Radio for U.S. compatible |
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| 30 | NMEA input/output |
(NMEA 2000/0183) | | | |
| 31 | Dual-beam sonar capable |
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| 32 | Dual-frequency sonar capable |
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