Smart-Cap System

Smart-Cap System

Help Prevent Fuel Spills by monitoring actual tank levels

  • Adjustable high level alarm
  • Automatic System Activation
  • Compatible with new and existing instrumentation
  • Winner of the IBEX Environmental Award

This patented alarm system takes the Guess Work out of the re-fueling process. It gives the boater a tool to help fill the fuel tank to a predetermined level without overfilling that tank and spilling fuel onto the deck or into the water.

Easy to use

  1. A sensor in the fuel cap arms the system when the cap is removed for refueling.
  2. The system monitors the fuel sender and gauge during re-fueling.
  3. The boat operator can adjust the set-point for the audible alarm to a fuel level of
    70% - 100% of a full tank.
  4. When the fuel level reaches the high-level set point. The system activates an audible alarm or dashboard light signaling the operator that the tank is full or approaching full capacity. (When properly adjusted the fuel tank can be filled to its maximum level without spilling fuel from the vent or the fill nozzle.)
  5. The system and audible alarm is deactivated when the fuel cap is replaced after re-fueling.

System Diagram

Smart-Cap Detailed Diagram

Additional Features

The alarm can be programmed using dipswitches to operate under the following conditions:

Input voltage - 12 or 24vdc
Fuel gauges - On or Off during the re-fueling process
Gauge types- All standard resistive and voltage type senders and gauges

Multiple fuel tanks

The system can be wired to activate when the transfer pump is energized to transfer fuel from an auxiliary tank to the main tank. The alarm will sound when the main tank is full to alert the operator to shut off the transfer pump prior to pumping fuel overboard from the vent line.

Award Winning Design

This product won the Innovative Product Environmental Design Award judged by the Boating Writers International at the 2005 IBEX show in Fort Lauderdale, Florida.

Download Spec Sheet