Johnson Pump Bilge Alert High Water Alarm - 12V Ultima - 72303-001
Manufacturer Part #: 72303-001
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Johnson Pump Bilge Alert High Water Alarm – 12V Ultima – 72303-001
The Johnson Pump Bilge Alert High Water Alarm (72303-001) is a critical safety device designed to warn boat owners of dangerously rising bilge water levels before flooding becomes a serious threat. Engineered for 12V DC marine electrical systems, this alarm provides a clear audible warning when water reaches a pre-set high level in the bilge.
Featuring Johnson Pump’s Ultima electronic water sensing technology, the system detects water without moving parts, eliminating common failures caused by debris, oil, or sticking float mechanisms. This ensures reliable operation and long service life, even in harsh bilge environments.
The Bilge Alert works independently of the primary bilge pump float switch, offering an additional layer of protection for boats of all sizes. Ideal for recreational vessels, yachts, and commercial boats, it delivers peace of mind whether the vessel is underway, at anchor, or unattended at the dock.
Key Features
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Mirus Field Effect Technology: The sensor projects a micro-electrical field to detect water through its sealed housing. Because there are no moving parts to jam and no exposed sensors to corrode, it is significantly more reliable than traditional mechanical float switches.
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Smart Delay System: Features a built-in 8-second delay to prevent false alarms caused by water sloshing or heavy rolling while underway.
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100dB Audible Alarm: The control panel houses a powerful piezo buzzer that is loud enough to be heard over engine noise, alongside a bright red LED for visual confirmation.
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Three-Way Control Switch: The integrated rocker switch allows the operator to Test the system, Arm it for standard operation, or Disable the audible buzzer during maintenance while keeping the warning LED active.
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Compact & Sealed: The sensor has a tiny footprint and completely sealed electronics, making it easy to mount even in the tightest, most debris-filled areas of your bilge.
Technical Specifications
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Voltage: 12V DC
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Current Draw (Passive): 16 micro amps (extremely low battery drain)
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Switch Rating: Can handle pumps up to 20A
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Alarm Volume: 100 dB
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Panel Dimensions: 2.5" x 2" (64mm x 50mm)
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Sensor Dimensions: 1" x 2.5" x 0.2" (26mm x 64mm x 5mm)
What's Included:
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Control Panel: A black plastic dash-mount panel featuring a 3-way rocker switch (Test, Off, Armed) and a high-visibility LED warning light.
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Ultima Switch (High Water Sensor): A compact, digital sensor that detects water levels using electronic field effect technology. It is ignition-protected and designed to ignore oil or debris.
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Audible Alarm: An integrated 100 dB piezo buzzer that provides a loud warning signal when the sensor is triggered.
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Wiring: Pre-installed wire leads to connect the sensor to the control panel and your vessel's 12V power supply.
Ideal Applications
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Recreational powerboats and sailboats
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Yachts and cruisers
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Commercial and workboats
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Engine rooms and bilge compartments
Specifications
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Product Type: High water bilge alarm
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Voltage: 12V DC
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Sensor Type: Ultima electronic water sensor
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Alarm Type: Audible alert
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Manufacturer Part Number: 72303-001
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Brand: Johnson Pump
Why Choose the Johnson Pump Bilge Alert?
Early warning is critical when it comes to bilge water intrusion. The Johnson Pump Bilge Alert High Water Alarm provides dependable monitoring using proven electronic sensor technology, helping prevent costly damage and improving onboard safety. With simple installation and reliable performance, it’s an essential upgrade for any boat.
Installation Insight 1
Because the sensor uses field-effect technology, it is not affected by oil, diesel, or floating debris. However, some users recommend mounting the sensor with a small rubber washer or allowing it to "dangle" slightly off the floor to ensure that a thin film of water doesn't keep the sensor triggered after the bilge has been pumped dry.
Installation Insight 2
While the kit includes the primary components, you may need additional 16 AWG marine-grade wire and heat-shrink butt connectors if your bilge is located far from the helm station where the panel will be mounted.
Manufacturer : Johnson Pump
Manufacturer Part No : 72303-001
Johnson Pump Bilge Alert High Water Alarm - 12V Ultima - 72303-001 is backordered and will ship as soon as it is back in stock.
Johnson Pump Bilge Alert High Water Alarm - 12V Ultima - 72303-001
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