Garmin OnBoard™ System — Wireless Man Overboard & Engine Cutoff System
The Garmin OnBoard™ System is a wireless Man Overboard detection and engine cutoff system built around the GOS 10 hub,
rated IPX7 for water resistance
and
operating on 10–35 Vdc
.
The system uses compact wireless MOB tags that can be worn on the wrist, secured with a carabiner, or attached to a floating key ring
, and integrates with compatible Garmin marine chartplotters for waypoint marking and tag management.
Technical Specifications
| Hub Model | GOS 10 |
|---|---|
| Input Voltage | 10–35 Vdc |
| Current Draw | 50 mA at 12 V |
| Wireless Protocol | Bluetooth 2.4 GHz |
| Water Rating | IPX7 |
| Dimensions (L × W × H) | 6 × 3.6 × 2.4 in (152.4 × 91.4 × 61 mm) |
| Weight | 0.76 lbs |
| Tags Supported | Up to 8 simultaneous (captain and passenger) |
| Compass-Safe Distance | 5 cm |
Compatibility & Applications
- Wires to vessel engine harness via included 12-pin fused power and engine cutoff harness.
- Connects to an existing NMEA 2000 network via included NMEA 2000 tee and 6-foot drop cable (NMEA 2000 network required).
- Integrates with a compatible Garmin chartplotter for tag management, MOB waypoint display, and MFD alerts.
- Captain-role tag triggers engine cutoff, MOB waypoint, and audible alarm; passenger-role tag triggers MOB waypoint and audible alarm only.
- Fits any boat with an engine cutoff switch and a compatible Garmin chartplotter, per Garmin’s published compatibility statement.
The box includes the GOS 10 hub, 12-pin fused power and engine cutoff harness with external buzzer, external antenna, NMEA 2000 tee and 6-ft drop cable, one white wireless MOB tag, CR2032 coin cell battery, 20 mm quick release wristband, carabiner, floating foam keychain, and installation hardware
— providing a complete installation kit that replaces traditional tethered kill-switch lanyards without requiring separate accessory purchases.
