signalk

Why SailorGuard Gateway?

SailorGuard Gateway PCB is engineered from the ground up to deliver reliability, simplicity, and intelligent automation without the technical overhead typically found in traditional marine electronics.

plug and play hardware

Zero Configuration

Plug it in. Power it on. It just works.

Traditional marine systems require complex setup: SD card flashing, configurations, network settings, plugins, and dozens of technical steps that frustrate everyday boat owners.

SailorGuard eliminates configuration entirely.

  • No operating system to maintain
  • No SD card imaging or reflashing
  • No command-line tools
  • No NMEA mapping required
  • Automatic sensor detection

Whether you’re installing your first navigation sensor or upgrading a charter fleet, SailorGuard is designed so anyone can set it up in minutes without needing a technician or background in marine electronics.

corrupted sd card

SD Card Corruption

Engineered without the #1 failure point in marine electronics.

Most marine gateways and DIY servers rely on SD cards, which frequently fail due to:

  • Power fluctuations
  • Moisture
  • Heat
  • Continuous read/write logging
  • Sudden shutdowns

When an SD card dies, the whole system becomes unusable.

SailorGuard is built with no SD card and no filesystem dependency.

fast boot

Instant Boot

Your system is ready the moment you turn on the battery.

Unlike traditional servers that take 20–60 seconds to boot or that freeze after an unexpected shutdown, the SailorGuard gateway:

  • Boots in under one second
  • Recovers instantly after power interruptions
  • Never “hangs” or gets stuck in a boot loop
  • Always comes back online after storms, voltage drops, or battery reconnections

When you need depth, wind, or anchor control you get it immediately.
No waiting. No rebooting. No guesswork.

Marine grade pcb

Secure & Reliable

Safety-critical systems require safety-first engineering.

Boats depend on accurate data for navigation and anchoring.
SailorGuard is engineered with a strong focus on stability and security:

  • Encrypted communication (HTTPS/WSS)
  • Secure pairing to prevent unauthorized access
  • Over-the-air firmware updates
  • Health monitoring & heartbeat signals
  • Fail-safe anchor control with manual override
  • Marine-grade isolation & surge protection
  • Designed for 24/7 operation in harsh environments

Whether you’re monitoring wind at night, tracking depth in shallow water, or relying on emergency anchor automation, SailorGuard ensures consistent performance and trusted reliability.

navionics

Integration with Navionics & OpenCPN

Use your favorite navigation apps with live boat data — anywhere.

SailorGuard acts as a high-performance WiFi gateway that streams real-time NMEA/SignalK data directly to charting apps like Navionics, OpenCPN, and other third-party navigation tools.
With a single SailorGuard device onboard, your tablet, phone, or laptop instantly becomes a full navigation instrument panel.

What This Means for You

✔ Live navigation data inside Navionics
Depth, speed, GPS, heading, wind, AIS targets — all appear live on your Navionics chart via WiFi.

✔ Full compatibility with OpenCPN

SailorGuard vs SignalK

Together, they offer the best of both worlds for every type of boater

CategorySailorGuard GatewaySignalK Server
Purpose
Simple, plug-and-play hardware gateway for real-time boat data, safety, and remote monitoring
Full-featured data server with advanced customization, dashboards, and plugins
Installation Difficulty
Very easy — no setup, no SD card, no OS, auto-detect sensors
Complex — requires Raspberry Pi or computer, OS install, SD card, configuration
Boot Time
Instant (under 5 second)
20–60 seconds depending on hardware
Reliability
Extremely high — no SD card to corrupt, no OS to crash
Can fail due to SD card corruption, OS updates, or misconfigured plugins
SignalK Data Output
Yes — streams core NMEA data (depth, wind, GPS, speed, heading, batteries, tanks)
Yes — full data model + plugin extensions
Power Consumption
Ultra low (ESP32-level)
Moderate–high (Raspberry Pi or PC)
NMEA 0183 Support
Native
Full (via CAN adapters)
NMEA 2000 Support
Native (via hardware)
Full (via CAN adapters)
SeaTalk1 Support
Yes
Depends on additional hardware
Anchor Control Integration
Yes — remote UP/DOWN, chain meter, auto-drop safety
Not built-in — requires custom hardware & integrations
Primary Strength
Simplicity + reliability + zero maintenance
Flexibility + customization + unlimited expansion
Primary Limitation
No plugin ecosystem, no full dashboards
Requires maintenance, technical knowledge, higher cost

FAQ