PEACE OF MIND.
BUILT INTO EVERY BOAT.
Shore Power
Horizon - Shore Power - Disconnected
Service Battery
Horizon - Service Battery (11.44V) - Voltage has dropped


One platform,
four TAILORED SOLUTIONS

BOAT OWNERS
Stay connected to your boat.

BUILDERS & OEMs
connected ownership experiences.

FLEETS & CHARTER
Improve operational efficiency.

SERVICE PARTNERS
Grow your marine business.
MORE THAN A DECADE
oF CONNECTED BOATING.
BOAT BUILDERS
WHO TRUST SENTINEL

























FLEETS & CHARTER OPERATORS
USING SENTINEL
From morning coffee
to evening anchor.
Before
you arrive.
Check status, warm the cabin, get the boat ready — from the car, from home, or wherever you are.

When you're
onboard.
Auto-logged trips, anchor watch, and digital documents. Sentinel works quietly in the background while you enjoy your time on the water.

After
your trip.
Geofence alerts, maintenance tracking, service reminders. Sentinel keeps watch while you’re away.

TRUSTED ACROSS THE BOATING INDUSTRY
As Yachtcharter Huibers, we are extremely satisfied with Sentinel. Three years ago, Sentinel’s system helped us save the lives of nine guests aboard one of our rental boats. These guests had used an electric grill several times while the boat was off the shore power, which later caused a short circuit in the batteries. When they reconnected to shore power, the batteries began emitting toxic hydrogen sulfide gas. Thanks to Sentinel, we noticed this in time and could immediately instruct the guests to leave the boat. Had they gone to sleep, they would not have survived – we are sure of that. Sentinel is truly an invaluable asset for any yacht rental business.
Jan Huibers
As Yachtcharter Huibers, we are extremely satisfied with Sentinel. Three years ago, Sentinel’s system helped us save the lives of nine guests aboard one of our rental boats. These guests had used an electric grill several times while the boat was off the shore power, which later caused a short circuit in the batteries. When they reconnected to shore power, the batteries began emitting toxic hydrogen sulfide gas. Thanks to Sentinel, we noticed this in time and could immediately instruct the guests to leave the boat. Had they gone to sleep, they would not have survived – we are sure of that. Sentinel is truly an invaluable asset for any yacht rental business.
As a company, Prime Yachting d.o.o., we have been using Sentinel Marine devices for 10 years, and we are extremely satisfied. Their systems are reliable, easy to use, and provide us with complete control and real-time monitoring of our vessels. Customer support is always professional and prompt, especially thanks to Ivan and Draško, who are always there for us. We highly recommend Sentinel to anyone looking for a high-quality solution for vessel monitoring and security.
Tea Novaković
As a company, Prime Yachting d.o.o., we have been using Sentinel Marine devices for 10 years, and we are extremely satisfied. Their systems are reliable, easy to use, and provide us with complete control and real-time monitoring of our vessels. Customer support is always professional and prompt, especially thanks to Ivan and Draško, who are always there for us. We highly recommend Sentinel to anyone looking for a high-quality solution for vessel monitoring and security.
Sentinel helps our customers to remote monitor their yachts. For example shore power problems are detected immediately, so that the customer can take action before permanent damage is done. The possibility to add manuals to the Sentinel, to have one dedicated application with all yacht related information and documents is very helpful for the end user.
Robert Vijselaar
Sentinel helps our customers to remote monitor their yachts. For example shore power problems are detected immediately, so that the customer can take action before permanent damage is done. The possibility to add manuals to the Sentinel, to have one dedicated application with all yacht related information and documents is very helpful for the end user.






