Rule Hi-Water Bilge Alarm

The Rule Hi-Water Bilge Alarm is a dual-function monitoring system designed to protect unmanned bilge compartments aboard vessels of any size. This float-switch-based alarm combines a non-mercury float switch with an in-dash gauge that delivers both visual and audible 85 dB alarm signals, ensuring that rising water in unattended spaces is detected immediately and cannot be overlooked.

The system features a reliable float mechanism that triggers as water levels rise, activating the audible alarm and visual indicator on the dash-mounted gauge. The 85 dB alarm threshold is loud enough to be heard throughout most vessel cabins and engine rooms, providing critical warning before water accumulation becomes catastrophic. For vessels with multiple compartments, additional Rule float switches can be connected to the same gauge unit, creating a scalable monitoring solution without cluttering the dashboard. This modular approach makes the system economical for boats with complex internal layouts or multiple bilge areas.

This bilge alarm meets CFR 182.530 federal requirements for commercial vessels 26 feet or longer, which mandate both visual and audible alarms in all unmanned spaces. Weekend fishermen and serious offshore anglers operating larger center consoles, express cruisers, or charter vessels rely on bilge alarms to prevent engine compartment flooding when the boat is unattended or during extended offshore runs. The Rule Hi-Water Bilge Alarm's proven float-switch design and straightforward installation make it the preferred choice for recreational and commercial operators who cannot afford to miss warning signs of water intrusion.