Rule High Water Bilge Alarm System – 24V
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Rule High Water Bilge Alarm System – 24V
Know the moment water rises in your bilge — before it becomes a problem. This complete 24V high water alarm system from Rule includes everything needed to monitor an unmanned compartment: a float switch that detects rising water, an in-dash gauge, and a dual-mode alarm that triggers both a visual indicator and an 85 dB audible alert the moment the water level reaches the float.
Designed for vessels running 24V electrical systems, this alarm gives you reliable early warning whether you’re at the helm, below deck, or away from the boat.
What’s Included
- Float switch (bilge water level sensor)
- In-dash gauge with visual alarm indicator
- 85 dB audible alarm
Key Features
- Dual-mode alarm — both visual and audible (85 dB) for reliable detection in noisy environments
- Designed for continuous monitoring of unmanned compartments
- Expandable — add additional float switches to monitor multiple compartments from the same gauge
- 24V system compatible with larger vessel electrical installations
- Complies with CFR 182.530 — the US federal requirement for a visual and audible bilge alarm in each unmanned space on commercial vessels 26 feet and longer
Specifications
- Voltage: 24V
- Alarm Output: 85 dB audible + visual indicator
- Compliance: CFR 182.530
- Expandable: Yes — supports additional float switches for multi-compartment monitoring
Related Products
- Rule High Water Bilge Alarm System – 12V
- Rule 3-Way Bilge Panel Switch – 12/24/32V
- Rule 500 GPH Automatic Bilge Pump & Switch Combo – 12V
- Rule Bilge Pump 500 GPH – 12V
- Rule-Mate Automatic Bilge Pump – 800 GPH, 12V
Parts Desk Insights
The 24V version is the right choice for larger vessels — typically twin-engine boats, larger cruisers, and commercial craft that run 24V electrical systems rather than the standard 12V. If your vessel runs a 12V system, see the 12V version instead. As with the 12V model, this system satisfies the CFR 182.530 requirement for commercial vessels 26 feet and longer operating in US waters. The expandable float switch design lets you monitor multiple compartments (engine room, lazarette, forward bilge) from a single gauge — a practical solution for larger vessels with multiple bilge spaces. Pair with a bilge pump and the Rule 3-Way Panel Switch for a complete bilge management system.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.