---
product_id: 21719208
title: "72303-001 Bilge Alert High Water Alarm with Ultima Switch, 12V,Black"
brand: "johnson pump"
price: "1509 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/21719208-72303-001-bilge-alert-high-water-alarm-with-ultima-switch
store_origin: DK
region: Denmark
---

# 12V power efficiency Sealed, corrosion-proof sensor 3-way rocker switch control 72303-001 Bilge Alert High Water Alarm with Ultima Switch, 12V,Black

**Brand:** johnson pump
**Price:** 1509 kr
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay Ahead of Floods with Smart Bilge Protection!

## Quick Answers

- **What is this?** 72303-001 Bilge Alert High Water Alarm with Ultima Switch, 12V,Black by johnson pump
- **How much does it cost?** 1509 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/21719208-72303-001-bilge-alert-high-water-alarm-with-ultima-switch)

## Best For

- johnson pump enthusiasts

## Why This Product

- Trusted johnson pump brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Control:** Intuitive 3-way rocker switch lets you test, arm, or disable the alarm with ease.
- • **Instant High Water Alerts:** 3-second delay alarm triggers fast response to prevent costly bilge flooding.
- • **Durable & Maintenance-Free:** Fully sealed fluid detectors resist oil, debris, and water damage for long-lasting performance.
- • **Precision Digital Detection:** Patented Mires field effect sensor ensures ultra-reliable water detection without corrosion risks.
- • **Compact & Lightweight Design:** Sleek 12V unit fits discreetly on your panel without adding bulk or weight.

## Overview

The Johnson Pumps 72303-001 Bilge Alert is a compact, 12V high water alarm featuring patented Mires field effect digital sensors that never contact water, preventing corrosion and false alarms. Its sealed design resists oil and debris, while a 3-way rocker switch offers easy testing and control. Ideal for professional boaters seeking reliable, maintenance-free bilge monitoring.

## Description

High water alarm featuring digital technology using the patented Mires field effect. Totally sealed fluid detectors are never in contact with water, will not corrode and are not affected by oil or debris. Bilge Alert detects water and sends a signal (3 seconds delay) to the alarm and switch conveniently mounted on a panel. Three way rocker switch allows switch to be tested, turned off and armed.

## Features

- The package length is 19.558 centimeters
- The package height is 9.906 centimeters
- The package width is 10.16 centimeters
- Package Weight : 0.6 pounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Voltage | 12 Volts |
| Control Method | Touch |
| Mounting Type | Wall Mount |
| Sensor Technology | Photoelectric Sensor |
| UPC | 796793392308 729321030014 |
| Global Trade Identification Number | 00796793392308 |
| Manufacturer | Johnson Pump |
| Item Package Dimensions L x W x H | 7.48 x 3.94 x 3.86 inches |
| Package Weight | 0.23 Kilograms |
| Item Dimensions  LxWxH | 375 x 300 x 450 inches |
| Item Weight | 0.5 Pounds |
| Brand Name | Johnson Pump |
| Model Name | 72303-001 |
| Material | Plastic |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | 72303-001 |
| Style | Bilge |
| Included Components | Johnson Pump Bilge Alert High Water Alarm, 12V |
| Size | 12V |

## Product Details

- **Color:** Black
- **Brand:** Johnson Pump
- **Power Source:** 12V
- **Battery Description:** Alkaline
- **Number of Batteries:** 1 Unknown batteries required.

## Images

![72303-001 Bilge Alert High Water Alarm with Ultima Switch, 12V,Black - Image 1](https://m.media-amazon.com/images/I/61ahLNGYxkL.jpg)

## Questions & Answers

**Q: Is the switch panel waterproof?**
A: Probably not if it will immersed. It appears to be consistent with other panel-mounted mounted switches so is probably water resistant. Mine is mounted on a sailboat pedestal.

**Q: Can this be wired to turn on a bilge pump at the same time?**
A: No. You would place this above your primary automatic bilge as a warning for bilge pump failure.

**Q: What is the dimensions of the switch and the sensor**
A: Roughly the switch is 2x1 1/2” plus trim ring. The water detector is 3x11/2”.

**Q: Does this alarm draw current when detection is enabled? How much?**
A: I checked the current draw, there is less than 1ma while in the detection mode. When powered off, the meter indicated the same reading. I also verified meter function.

## Frequently Bought Together

- Johnson Pumps 72303-001 Bilge Alert High Water Alarm with Ultima Switch, 12V,Black
- Trintion Automatic Bilge Pump 12V 1100GPH Electric Submersible Water Pump With Float Switch for Boat, Ponds, Pools
- Rule 35A A-Matic Bilge Pump Float Switch, Mercury,White

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**Shop now:** [https://www.desertcart.dk/products/21719208-72303-001-bilge-alert-high-water-alarm-with-ultima-switch](https://www.desertcart.dk/products/21719208-72303-001-bilge-alert-high-water-alarm-with-ultima-switch)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-09*