Water Sensor One
Installed near the dock to continuously sample electrical conditions.
How Dock Sentinel Works
Monitor the water.
Recognize the change.
Alert the dock.
Dock Sentinel continuously monitors the water surrounding your dock for abnormal electrical activity that may indicate a dangerous electrical fault.
Unlike devices that only monitor the electrical system, Dock Sentinel actively measures conditions in the water itself.
1. The Problem
Electrical leakage in water can be invisible.
Damaged wiring, faulty equipment, boat lifts, or other electrical sources can introduce electrical energy into the water without obvious signs.
A dock may appear normal while an abnormal electrical condition exists nearby. Dock Sentinel adds continuous situational awareness so owners can recognize conditions that warrant investigation.
You cannot see electricity in the water.Continuous monitoring helps identify abnormal electrical activity before it goes unnoticed.
2. How Dock Sentinel Detects It
Two water sensors. Continuous intelligent monitoring.
Two corrosion-resistant marine-grade stainless steel sensors measure the electrical potential between two points in the water.
Potential difference measured continuously
Water Sensor Two
Provides the second measurement point used by the monitoring system.
Onboard Processing
Multiple measurements are analyzed every second to distinguish normal environmental conditions from abnormal electrical activity.
Electrical Field Strength
Evaluates the magnitude of electrical activity detected in the water.
Signal Stability
Examines whether the measured signal is stable or transient.
Measurement Quality
Uses repeated measurements to improve reliability and reduce false alarms from electrical noise.
Sensor Health
Checks sensor and internal system health to identify maintenance needs.
Continuous Monitoring
Operates throughout the day and night rather than relying on a manual spot check.
Abnormal Activity Recognition
Detects changes that may indicate electrical leakage into the water.
3. How You’ll Know
Three operating states provide clear direction.
The front panel, warning beacon, audible alarm, and connected interface communicate what the system has detected.
Normal Operating Conditions
SAFE
No abnormal electrical activity has been detected based on the system’s monitoring criteria.
System Attention Required
FAULT
A sensor, electronics, or system issue has been detected. Monitoring continues, but maintenance may be required.
Abnormal Electrical Activity
DANGER
The beacon and audible alarm activate to warn nearby occupants to avoid entering the water.
High-Visibility Beacon
Designed to draw attention from across the dock or marina.
Onboard Alarm
Helps immediately notify people near the monitored waterfront area.
Connected Status
Owners can securely review status and diagnostics from a phone, tablet, or computer.
4. Peace of Mind
Continuous monitoring with wireless diagnostics.
Built-in wireless connectivity supports configuration, diagnostics, and system monitoring.
- System status
- Live sensor measurements
- Alarm history
- Sensor diagnostics
- Firmware information
- Future software updates without replacing hardware
Owner-managed monitoring: Dock Sentinel is not a centrally monitored alarm service. Owners and authorized users monitor their own devices and properties.
Designed for Freshwater Environments
Purpose-built for docks, marinas, boat lifts, and residential waterfronts.
Dock Sentinel is being developed specifically for freshwater installations where electrical faults can create hazardous conditions.
The system is intended to provide continuous situational awareness and early notification of abnormal electrical activity that may require investigation.
How It Helps
Early awareness for waterfront owners.
Continuous Monitoring
Monitors water conditions throughout the day and night.
Abnormal Activity
Identifies abnormal electrical activity near the dock.
Immediate Warnings
Provides visual and audible alerts when needed.
Developing Problems
Helps owners recognize electrical problems requiring investigation.
Potential Hazards
Adds another layer of situational awareness around the waterfront.
Current Development Status
Engineering development and validation are ongoing.
Dock Sentinel is currently undergoing engineering development and validation testing across a range of environmental and operating conditions.
Freshwater Field EvaluationsControlled Laboratory TestingEnvironmental CharacterizationLong-Term Reliability Assessments
When a Danger Alert Occurs
Treat the condition seriously.
Keep Everyone Out
Do not allow anyone to enter or remain in the water.
Do Not Investigate From the Water
Never enter the water to investigate an electrical condition.
Disconnect Power When Safe
Turn off power only from a dry, protected location when safe to do so.
Contact a Qualified Electrician
Have the dock and connected electrical systems inspected before use resumes.
Frequently Asked Questions
How Dock Sentinel fits into dock safety.
Does Dock Sentinel measure the electrical system or the water?
Dock Sentinel actively measures electrical conditions in the water between two installed water sensors.
What does the amber FAULT state mean?
FAULT indicates a sensor, electronics, measurement-quality, or internal diagnostic issue requiring attention. It is distinct from a DANGER condition in the water.
Does SAFE guarantee the water is safe?
No. SAFE means no abnormal electrical activity is currently detected based on the system’s monitoring criteria.
Does Dock Sentinel replace electrical inspections?
No. It complements proper electrical design, installation, inspection, testing, maintenance, and code compliance.
Can the system be updated after installation?
The intended architecture supports future software and firmware improvements without replacing the monitoring hardware.
Detect. Alert. Protect.
Know before anyone enters the water.
Learn more about Dock Sentinel for a private dock, marina, boat lift, rental property, or waterfront business.
Important: Dock Sentinel is designed to monitor electrical conditions in the water and provide notifications based on those conditions. It does not eliminate electrical hazards, replace proper electrical installation, inspection, maintenance, or code compliance, and it does not guarantee that conditions are safe.