The Garmin OnBoard Man Overboard System (010-02908-00) from Nomadic Supply Company® is a wireless Man Overboard (MOB) detection and engine cutoff system for boats, replacing old tethered lanyards with compact, wearable tags that alert your compatible Garmin chartplotter if someone falls in the water, dropping a waypoint and sounding an alarm, with the option to automatically cut the engine if a designated “captain” tag goes overboard. It uses Bluetooth, supports up to 8 tags, and offers a modern, untethered safety solution for passengers, children, pets, or objects.
How the Garmin OnBoard Man Overboard System (010-02908-00) Works:
- Wearable Tags:
Small wireless tags are worn by individuals or attached to objects, offering freedom of movement.
- System Hub:
A central GOS 10 hub connects to your boat’s engine cutoff and Garmin chartplotter.
- Event Trigger:
If a tag goes overboard, it loses connection, triggering:
- Captain Tag:
Engine cutoff, loud hub alarm, and MOB waypoint.
- Passenger Tag:
MOB waypoint and audible alarm.
- Captain Tag:
- Easy Recovery:
The waypoint on your chartplotter shows exactly where to turn back to rescue the person.
Garmin OnBoard Man Overboard System (010-02908-00) Features:
- Wireless Freedom:
No more restrictive lanyards.
- Customizable Roles:
Designate tags as “Captain” (engine cut) or “Passenger” (alarm/waypoint) via your chartplotter.
- Multi-Tag Support:
Connect up to 8 tags for comprehensive coverage.
- Loud External Alarm:
The hub ensures alerts are heard over engine noise.
- Waterproof Design:
Tags and the hub are built for marine environments.
CAPTAIN TAG
Captain MOB detection will trigger engine cutoff, a MOB waypoint on the chartplotter and an audible alarm on the MFDs and hub.
WIRELESS: NO STRINGS ATTACHED
The wearable MOB tags are part of a wireless MOB system — letting you move untethered while still being monitored.
PASSENGER TAG
Passenger MOB detection will trigger a MOB waypoint on MFDs plus an audible alarm on the MFDs and hub.
ENGINE CUTOFF SYSTEM
Should a captain tag trigger an MOB event, the system will cut power to the engines — letting the captain return to the vessel.
CAPTAIN OR PASSENGER TAGS
Through the Garmin chartplotter interface, you can designate each tag as either captain or passenger — changing their MOB action.
WAYPOINTS
When paired to your compatible Garmin chartplotter, a waypoint will be marked at the location where the MOB tag lost connection with the vessel.
Garmin OnBoard Man Overboard System (010-02908-00) Includes:
- GOS 10 Hub
- 12-pin fused power and engine cut-off harness with external buzzer
- External antenna for wireless connection to MOB tags
- NMEA 2000 tee and 6 ft drop cable
- White wireless MOB tag
- CR2032 coin cell battery
- White 20 mm quick release band
- Carabiner with 20 mm quick release attachment
- Floating foam keychain
- Installation hardware
- Documentation
Garmin OnBoard Man Overboard System (010-02908-00) Specifications:
| General | |
| Number of tags supported | 8 simultaneous passengers and captains |
| User interface | Compatible Garmin chartplotter |
| MOB alarm | External beeper and MFD alert |
| Engine cutoff | Yes |
| View MOB details on MFD | Yes |
| View tag status on MFD | Yes (battery life, signal strength, protection status) |
| Manage tags on MFD | Yes (arm/disarm, captain/passenger) |
| Wireless engine kill | Yes |
| GOS Hub | |
| Dimensions (HxWxD) | 91.55 mm x 155.12 mm x 48.47 mm |
| Weight | 171.7 g |
| Wireless range | 66 ft (up to 20 m) |
| Supply voltage range | 10-32 V |
| Operating temperature range | -15 C to 70 C |
| Typical power consumption | 50mA @ 12 V or 0.6 W |
| NMEA 2000 LEN | 1 |
| Engine compatibility | Inboard, outboard, sterndrive from all major manufacturers |
| Engine interface | Hardwired, in-line connection to ignition harness |
| Number of engines supported | Up to 4 close-to-stop or 2 open-to-stop engines |
| Water rating | IPX6 and IPX7 |
| Compass-safe distance | 5 cm |
| MOB Tag | |
| Dimensions (HxWxD) | 43.94 mm x 38.60 mm x 11.96 mm |
| Weight | 21.5 g |
| Wireless range | 66 ft (up to 20 m) |
| Battery type | CR 2032 coin cell |
| Battery life | > 1,200 hours of connected time |
| View tag status on MFD | Yes (battery life, signal strength, protection status) |
| Water rating | IEC 60529 IPX8 (5 ATM) |
| Attachment | Wrist strap or carabiner |








