Garmin GMM 170 Overhead Marine Monitor
$2,699.00
Garmin GMM 170 Overhead Marine Monitor is a 17-inch multi-touch display built for GPSMAP 8500 glass helm installations. Its six o’clock viewing angle, anti-glare SXGA touchscreen, and compact depth make it well suited to overhead and flush-mounted helm layouts.
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Overview Garmin GMM 170 Overhead Marine Monitor
Garmin GMM 170 Overhead Marine Monitor is a 17-inch multi-touch marine display designed to complement a GPSMAP 8500 black box system. Its ultra-thin profile keeps the installation clean while the six o'clock viewing angle makes this version particularly suitable for overhead or upper-helm mounting positions.
The anti-glare touchscreen supports familiar touch gestures and full 1080p video input, while LED backlighting and auto-dimming help maintain visibility in changing light. SmartMode support and broad system integration allow the monitor to work as part of a coordinated glass helm layout for navigation, sonar, gauges, media and onboard monitoring.
Key Features
- Overhead-friendly viewing angle: The six o'clock angle version is suited to installations where the display is viewed upward from below.
- 17-inch multi-touch screen: The SXGA touchscreen offers a large viewing area for charting, video, gauges and other helm functions.
- Slim glass helm format: Its compact depth helps the monitor fit where larger integrated displays can be difficult to install.
- Touch workflow and video support: Pinch-to-zoom controls and full 1080p video input support practical helm interaction and monitoring.
- SmartMode layout control: Custom preset display modes help synchronize multiple screens at the helm for faster layout changes.
- Broad system integration: The monitor is designed to work with sonar, autopilot, engine data, apps and media within a Garmin glass helm setup.
Applications
- Overhead or upper-console display positions in Garmin glass helm installations.
- Black box helm systems that separate the processor from the visible display surface.
- Large navigation and monitoring layouts that combine charting, sonar, cameras and engine data.
Specifications
| Display size | 17-inch touchscreen marine monitor |
| Resolution | 1280 x 1024 pixels |
| Display type | SXGA touchscreen display with anti-glare finish |
| Dimensions | 16.1 x 14.5 x 2.9 in (41 x 37 x 7.5 cm) |
| Weight | 11 lb (5.0 kg) |
| Water resistance | IPX6 front when mounted correctly |
| Power consumption | 5A at 12 V |
| Inputs | 2 DVI-D, 3 VGA, 3 composite BNC, component BNC, Garmin processor box port |
What’s Included
- GMM 170 – 6 o’clock angle version
- Protective cover
- Flush mount gasket and hardware
- Power cable
- DVI-D cable 15 ft
- 20 ft network cable
- Documentation
Frequently Asked Questions About Garmin GMM 170 Overhead Marine Monitor
Why would an installer choose Garmin GMM 170 Overhead Marine Monitor?
Garmin GMM 170 Overhead Marine Monitor is designed as an overhead-friendly marine monitor for a GPSMAP 8500 black box system, giving glass helm installations a dedicated screen where standard viewing angles are not ideal. It is especially suited to upper-console positions that are viewed from below.
How does this display help in space-sensitive helm layouts?
This display uses a six o'clock viewing angle so the picture remains easier to read when the screen is mounted above the operator and viewed from below. Its shallow, ultra-thin profile also helps overhead or upper-console layouts stay cleaner and easier to integrate.
What control and display role does this product serve?
This unit is intended to work as part of a GPSMAP 8500 glass helm, where the processing hardware stays separate from the visible screen. Multi-touch control, full 1080p video input, and SmartMode support help coordinated navigation, sonar, gauges, media, and monitoring views.
What visibility features support everyday helm use?
The 17-inch format gives this marine monitor useful screen area without crowding overhead spaces, while 1280 x 1024, an anti-glare touchscreen, and LED backlighting and auto-dimming support clear viewing through changing light. That makes it a practical option when a bridge needs an additional display above the main sightline.

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