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                                        Garmin GNX 20 Specs
| General | |
| Dimension | 110 x 115 x 30 mm (4.33" x 4.53" x 1.18") | 
|---|---|
| Weight | 230 g (8 oz) | 
| Waterproof | IPX7 | 
| Display Type | Standard LCD, monochrome | 
| Display Size | 83 x 60 mm; 101.6 mm diagonal (3.3” x 2.4”; 4.0” diagonal) | 
| Mounting Options | Flat or Flush | 
| Glass bonded display | ✔ | 
| Temperature range | From 5° to 158°F (from -15° to 70°C) | 
| Sensors | |
| NMEA 0183 Compatible | ✔ | 
| Electrical Features | |
| Power Consumption | 0.35 W (day); 0.4 W (night) | 
| Compass safe distance | 209 mm (8.25 in.) | 
| Instrument Features | |
| Auto-on | ✔ | 
| User Profiles | ✔ | 
In the Box:
- GNX 20
- Trim piece snap cover
- Protective cover
- Flush mount gasket and hardware
- NMEA 2000® T-connector
- NMEA 2000 drop cable
- Installation instructions
- Documentation
 
    