Electronic Bilge Pump Switches of 2025
Best Choice1
Ultra Safety Systems Pump Switch Jr.17% OffULTRA Bilge Pumpswitch Jr. Float UPS-02, High Water Level Sensitivity Sensor, Reliable Automatic Pump Switch Activation for Boats and Yachts, Durable Construction, 12 Volt - Junior
Main highlights- Robust Electrical Specifications: Designed for demanding marine environments, this pump switch operates on 12 VDC and handles up to 20A@12V with an internal relay rated at 40A. The switch's positive action ensures reliable operation without time delays or complex electronics.
- No Delays, No Electronics – Just Performance: Experience consistent performance with positive action that engages without any time delays or electronics. The unique design minimizes the risk of clogging, sticking, or pump burnout, providing a reliable solution for your marine needs.
- Ignition Protected: The ULTRA Bilge Pumpswitch is designed with ignition protection, ensuring safety in marine environments. This feature minimizes the risk of ignition in fuel-rich atmospheres, making it ideal for boat safety.
- Highly Visible Power Indicator: Easily monitor your pump's status with the built-in power-on indicator light located at the top of the switch. This convenient feature allows you to instantly see whether your pump is active, adding an extra layer of safety.
- Durable and Corrosion-Resistant Design: Engineered with non-magnetic stainless steel and Buterate casing, this pump switch is built to withstand the harshest marine conditions. It is highly resistant to impact, fuel, oil, and saltwater, ensuring long-lasting performance.
9.9Exceptional
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Value for Money2
SEAFLOSEAFLO 13B-Series 2000 GPH 12V Electronic Sensing Automatic Bilge Pump
Main highlights- Voltage：12V Flow Rate: 2000 GPH Outlet Dia 1-1/8" (29mm) 4-Year Warranty
- Revolutionary Split Quick-Connect Joint: Effortless pump replacement in seconds! Experience unparalleled ease as there's no requirement to disconnect the base or plumbing. Simply swap out the motor for swift and hassle-free pump changes, catering to the convenience of all users.
- Motor can be sold separately
- Includes check valve to prevent water back flow
- Include removable discharge straight fitting
- Hidden Air Vents: Prevents Airlock
- Enhanced Features: Anti-Airlock protection and exclusive moisture-tight seals ensure reliable performance. Marine-grade blocked wiring guarantees durability in marine environments. Larger impeller design and a robust motor contribute to superior performance, outperforming competitors.
- Electronic Automatic Mode: SEAFLO's latest automatic bilge pumps eliminate the need for an extra float switchThe pump activates automatically every 2.5 minutes, halting operation if the current falls below 1.25A or exceeds 8A. It resumes operation 2.5 minutes after stopping. Additionally, when the pump identifies a current surpassing 1.25A at the water level, it resumes normal operation to efficiently pump water away
- Backup Functionality" Avoids Persistent Operation: Backup feature designed to prevent continuous running in case the sensor becomes obstructed by debris. The pump switches to a 2.5-minute cycle mode. It checks for water every 2.5 minutes, operating for just half a second each time, consuming only 0.25 AMP per day.
- Anti-Airlock protection
9.8Exceptional
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3
WATER WITCHWW BILGE PUMP SWITCH 15 AMP
9.7Exceptional
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4
Johnson Pump13% OffJOHNSON PUMPS Ultima Switch, Solid-State Level Sensing
Main highlights- Ultima Switch, Solid-State Level Sensing
9.6Exceptional
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5
WhaleWhale BE9003 Electric Field Sensor Switch, 12V or 24V, Suitable for Up to 20 Amps,Black
Main highlights- Worry-free, precise operation ensures proper bilge pumping and provides peace of mind
- Two test circles can be used to ensure activation
- Two color-coded wires make installation easy
- Turns pump off when water level drops below ½ inch
- Precision switch automatically activates and shuts off bilge pumps when water reaches specific levels
- Offers side or base mounting, can operate with 12V or 24V power, and it is suitable for up to 20 amps
- Automatically activates bilge pump when 2 inches of water is sensed
9.5Excellent
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6
Johnson PumpJohnson Pump 36152 Electro-Magnetic Float Switch,12V,Black,Small
Main highlights- MFG# JP-36152
- Float Switch
- False start prevention
- 15A Max
- 12v
9.4Excellent
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7
AttwoodAttwood 4801-7 Automatic Bilge Switch, 12-Volt, 15 Amp Maximum Pump Amp Draw, 36-Inch Wire, S3 Series Switch
Main highlights- You can rest ensured that your pump won't be exposed to continuous cycling as the S3 switch won't be fooled by splashing bilge water, chemicals, sludge build up or foam
- White switch
- The S3 series digital bilge switch incorporates a proprietary solid state electronic sensing technology to detect bilge water levels and trigger pump activation
- S3 Series switch incorporates proprietary Electronic Sensing technology for most precise operation
- Reliably detects bilge water levels and activates or deactivates bilge pump as needed
- Operates in any bilge water mixture consistently without failure
- Engineered to operate in any bilge water mixture consistently without failure
- Directly compatible with all other competitive products. Equipped with fully sealed electronics that are completely protected from water or chemical damage. Free from moving parts that can jam up, break or wear out over time.
- Compatible with all competitive products and is free of moving parts than can jam, break, or wear out
- Can be mounted on the floor of the bilge directly to a stringer wall or alongside the basket of the pump without added components or brackets
- Can be mounted on floor of bilge, directly to a stringer wall, or alongside pump basket without added brackets
- 12-volt switch has 15-amp maximum pump amp draw, and connects using 36-inch wire
9.2Excellent
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8
Johnson PumpJohnson Pump 36303 Ultima Auto Bilge Pump Switch
Main highlights- Will not corrode and are not affected by oil or foreign debris
- Ultima switch is rated to handle pumps up to 20 amps at 12 or 24 volts
- The detector cells are totally sealed and never in contact with the water
- Customizable industrial equipment
9.1Excellent
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9
SEACHOICESeachoice Automatic Electro-Magnetic Bilge Pump Switch, 15 Amps Max, 12V DC
Main highlights- Turns pump on at 2-1/4 inches of water; turns pump off at 3/4 inch of water
- NMMA, ABYC, and Coast Guard certified
- Manufacturer part number 50-19421
- Includes universal mounting bracket and 6 feet of 16-gauge tinned wire
- Fully warranted for 36 months
- Features false-start protection
- Electro-magnetic non-clogging switch is ideal for marine applications
- 100 percent factory tested
8.9Very Good
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10
Johnson PumpAMRM-36152 Mayfair Electro-Magnetic Bilge Pump Float Switch
Main highlights- False start prevention, no mercury, high impact plastic and encapsulated electronics adds up to dependability.
- Compact mechanical switch offers a combination of reliable solid state electronics and a sealed float switch.
- Activates pump at 2" water level, deactivates pump at 3/4" water level.
- 12V. Handles up to 15 amps.
8.6Very Good
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