ONE TECHNICIAN,
ONE VISION
Behind SEMA, there is only one person: myself, Stéphane, marine electronics technician for 23 years on the French Riviera. No middleman, no subcontractor I am the one who intervenes onboard, from Saint-Tropez to Monaco. 23 years on the French Riviera, hundreds of vessels serviced. When you call SEMA, you have a single point of contact from the first call to delivery. No salesperson, no delegated technician: the person who advises you is the same one who comes onboard.
Concrete mastery of navigation systems, acquired on all types of vessels.
I am not tied to any brand. I choose the equipment most suited to your vessel.
Available all year round, with maximum responsiveness during the summer.
MY WAY OF WORKING
Technology at the service of your serenity at sea.
Your safety depends on the reliability of your instruments. My role is to design and install robust electronic systems, properly wired and configured — and to ensure that you or your crew master them from day one.
I work on sailboats, yachts, catamarans, and superyachts. Each intervention is meticulous: structured cabling, clean mounting, crew training included.
I install and troubleshoot the market's leading brands: Garmin, Raymarine, Simrad, Furuno, B&G. I also specialize in Starlink Maritime integration, energy management, and connectivity systems.
"I don't just install — I make sure you master what I've put in place."
MY COMMITMENTS
Honest Advice
I explain what you need, not what costs the most. Every recommendation is justified.
Selected Equipment
Garmin, Raymarine, Simrad, Furuno, Victron, Peplink, Starlink: I choose the equipment based on your vessel and your budget.
Meticulous Installation
Ergonomic dashboard, labeled wiring, clean integration. The result must be as solid visually as it is technically.
Post-intervention Follow-up
I train the crew on the installed systems and remain available during the season for any questions or developments.
MY INTERVENTION AREAS
I intervene at the dock, at anchor, or in shipyards from Saint-Tropez to Monaco: Saint-Tropez, Théoule-sur-Mer, Mandelieu-la-Napoule, Cannes, Golfe-Juan, Antibes, and Monaco.