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SeaSense 50080304 4-Way Trailer Circuit Tester EZ Troubleshooter

Manufacturer

SeaSense

<h3>About SeaSense</h3><p>Since 1984, <strong>SeaSense</strong> has been one of the marine industry's most trusted names, delivering a broad lineup of reliable, affordable accessories to both weekend boaters and seasoned mariners alike. Headquartered in Urbandale, Iowa, SeaSense has spent decades rigorously developing and refining its product line — from deck hardware and cordage to safety gear, lighting, and trailer accessories — to meet the real-world demands of life on the water.</p><p>What sets SeaSense apart is its commitment to thoughtful product design. The brand pays close attention to how boaters actually interact with their gear, then engineers solutions that simplify the experience. The result is a catalog of over 700 products backed by distinctive, easy-to-navigate packaging and clear instructions that make installation and use straightforward for do-it-yourselfers and professionals alike. SeaSense has built strong relationships with more than 2,000 wholesale customers, a testament to the trust the brand has earned across the industry.</p><h3>A Complete Marine Accessories Lineup</h3><p>SeaSense covers nearly every corner of the boat, from the hull to the transom. Boaters looking to safely re-board after a swim will find purpose-built solutions in the SeaSense <a href="/200179-boarding-ladders-seasense-13414">Boarding Ladders</a> lineup, which features durable, portable designs suited to a wide variety of vessel types. For paddlers and canoeists, the brand offers a thoughtfully curated selection of <a href="/13414-seasense-paddles-200759">Paddles</a> as well as dedicated <a href="/13414-seasense-kayak-paddles-200598">Kayak Paddles</a> — both categories reflecting SeaSense's deep roots in kayak and paddle sports gear.</p><p>Below deck, SeaSense's <a href="/13414-seasense-plumbing-parts-accessories-200786">Plumbing Parts &amp; Accessories</a> keep onboard water systems running smoothly, offering components like thru-hull fittings, bilge switches, and drain plugs engineered for corrosion resistance in harsh marine environments. Rounding out their safety essentials, the SeaSense <a href="/13414-seasense-manual-bilge-pumps-200649">Manual Bilge Pumps</a> line provides a dependable, no-power-required solution for quickly evacuating water from kayaks, canoes, small powerboats, or any space where water accumulates.</p><h3>Why Boaters Trust SeaSense</h3><p>SeaSense products are designed to meet or exceed industry standards, with submersible bilge pumps, for example, certified to meet ABYC specifications. The brand's focus on affordability without sacrificing quality means boaters get reliable performance across every product category. Whether you're outfitting a fishing skiff, a recreational kayak, or a weekend cruiser, SeaSense offers the marine hardware and accessories to keep your time on the water safe, comfortable, and hassle-free.</p>

Part Number

50080304
09/17/2036 12:27 AM
Sale Price

$11.11

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The SeaSense EZ Troubleshooter is a simple, effective tool for diagnosing electrical issues in your trailer's lighting system. This 4-way circuit tester plugs directly into your vehicle's standard 4-prong flat towing connector to quickly verify power flow to turn signals, running lights, and brake lights.

Key Features:

  • Easy plug-in design works with conventional 4-prong flat trailer connectors
  • Individual green LED indicators for each circuit show when power is present
  • Quickly diagnose wiring faults without disconnecting the trailer
  • Waterproof PVC construction withstands outdoor use and weather exposure
  • Compact design for convenient storage in your vehicle or toolbox

To use, simply plug the tester into your vehicle's trailer connector, then activate each lighting function (turn signals, running lights, brakes) one at a time. The corresponding green light will illuminate when that circuit is receiving power, making it easy to pinpoint wiring problems, blown fuses, or faulty connections before hitting the road.

I made an assumption that this will ship quickly.

Quick and easy to find the part I needed at a good price.

Easy to use.

Best price and able to go threw Amazon to make payment

great! good prices and easy to navegate

We will see when product arrives.

Quick and easy online order.

I hope this fits.

the product reviews all seem to be reviewed of autoplicity's service instead of the item being viewed. either way, the shocks ordered were the right ones w/ all the parts w/ it. autoplicity's item descriptions could be a little more clear and/or explicit like specifying which side a part applies to instead of just &quot;passenger or driver&quot; side, or &quot;can be used in either said&quot;

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