Product DescriptionThe SEA SENSE EZ Troubleshooter 4-Way Circuit Tester quickly verifies power to trailer lighting circuits through any standard 4-pin flat towing connector. Built from waterproof PVC, this compact tester uses bright green LED indicators for tail, left, and right signal circuits, helping you diagnose wiring issues with turn signals, tail lights, and brake lights in seconds. Simple to use-just plug it into the vehicle&&';;s 4-way flat plug and operate the lights to confirm power.Product Highlights Plug-in tester for standard 4-way flat trailer wiring connectors Green LED indicators show power on tail, left, and right circuits Durable waterproof PVC construction for marine and outdoor use Compact, lightweight design for quick troubleshooting on the go Ideal for verifying vehicle-to-trailer lighting before towing Specs Product Type: Circuit Tester (4-way trailer wiring) Connector Type: Conventional 4-prong flat towing plug Material: Waterproof PVC Indicators: Green LEDs for tail, left, and right circuits Height: 8.75 in Weight: 0.05 lbs Country of Manufacture: Taiwan UPC: 737765803040 Manufacturer Part Number: 50080304 Brand Name: SEA SENSE Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.