Bilge Alert™ High Water Alarm with Sensor – 12V
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Bilge Alert™ High Water Alarm with Sensor – 12V
Reliable, low-maintenance bilge water detection using advanced field-effect sensor technology. The Bilge Alert™ High Water Alarm detects the presence of water without the sensor ever making direct contact with the bilge liquid — eliminating the corrosion, sticking, and debris-related failures that affect traditional float switches.
When water reaches the sensor, the system waits 8 seconds before triggering the alarm, filtering out brief splashes and wave action to minimize false alerts. The 100 dB alarm output ensures the alert is heard even in noisy engine room environments.
Key Features
- Field-effect sensor technology — non-contact liquid detection, highly reliable and durable
- Sealed detector — never in direct contact with bilge water, resistant to corrosion and debris
- 100 dB alarm — loud enough to be heard in engine rooms and noisy environments
- 8-second activation delay — filters out splashing and wave action to reduce false alarms
- 12V system compatible
Specifications
- Voltage: 12V
- Detection Technology: Field Effect (non-contact)
- Alarm Output: 100 dB
- Activation Delay: 8 seconds
Related Products
- Bilge Alert™ High Water Alarm with Ultima Switch (panel-mount version with Test/Off/Armed rocker)
- Rule High Water Bilge Alarm System – 12V
- Rule High Water Bilge Alarm System – 24V
- Rule 3-Way Bilge Panel Switch – 12/24/32V
- Rule-Mate Automatic Bilge Pump – 800 GPH, 12V
Parts Desk Insights
This is the sensor-only version of the Bilge Alert™ system — best suited for installations where you want the field-effect detection technology without the panel-mounted Ultima Switch. The 100 dB output and 8-second delay make it well-suited for engine rooms and enclosed bilge spaces where noise is a factor and brief water splashing is common. If you want a panel-mounted solution with a dedicated Test/Off/Armed rocker switch for easy control and alarm testing, the Bilge Alert™ with Ultima Switch is the more complete system. For a float-switch-based alarm at a lower price point, the Rule High Water Bilge Alarm is a solid alternative. Always confirm your vessel’s electrical system voltage before purchasing.
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.