---
product_id: 103322836
title: "Proline Power 7-Way Trailer Circuit Tester w/ 6 Function LED Indicator, 7-Blade Electric Wiring Adapter"
brand: "proline power"
price: "€ 1.58"
currency: EUR
in_stock: false
reviews_count: 2
url: https://www.desertcart.it/products/103322836-proline-power-7-way-trailer-circuit-tester-w-6-function
store_origin: IT
region: Italy
---

# 6 LED indicators compact design 7-way compatibility Proline Power 7-Way Trailer Circuit Tester w/ 6 Function LED Indicator, 7-Blade Electric Wiring Adapter

**Brand:** proline power
**Price:** € 1.58
**Availability:** ❌ Out of Stock

## Summary

> 🚦 Light Up Your Journey with Confidence!

## Quick Answers

- **What is this?** Proline Power 7-Way Trailer Circuit Tester w/ 6 Function LED Indicator, 7-Blade Electric Wiring Adapter by proline power
- **How much does it cost?** € 1.58 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/103322836-proline-power-7-way-trailer-circuit-tester-w-6-function)

## Best For

- proline power enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** Compatible with most SUVs, trucks, boats, trailers, and RVs.
- • **Instant Feedback:** Know your trailer's status at a glance with clear LED indicators.
- • **Effortless Testing:** Plug in and light up your trailer's circuits with ease!
- • **Lifetime Assurance:** Enjoy peace of mind with our best-in-class limited lifetime warranty.
- • **Compact Convenience:** Easily stow it in your glove compartment or toolbox.

## Overview

The Proline Power 7-Way Trailer Circuit Tester is an essential tool for any vehicle owner, featuring a compact design and universal compatibility with 7-way trailer plugs. With 6 easy-to-read LED indicators, it allows for quick and efficient testing of all trailer circuits, ensuring safety and reliability on the road. Backed by a lifetime warranty, this tester is a must-have for hassle-free trailer maintenance.

## Description

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## Features

- SUPER EASY TRAILER LIGHT TESTING - Simply plug the tester into the tow vehicle, turn on the lights, and check the easy to read LEDs.
- EASY TO READ - Watch the LED light indicating that each circuit is complete and current is getting to the plug. Includes function testing LEDs. Tests 7-way for tailer, brake, reverse, turn signals, brakes and auxiliary power.
- UNIVERSAL - Works with both the common 7-way trailer plug used on most SUV's, trucks, boats, trailers and RV's.
- COMPACT - Small size fits easily in glove compartment, pocket or tool box etc. Take the tester with you and always be prepared anywhere.
- PROLINE WARRANTY & 100% SATISFACTION- Our 7-way Tester comes with a best in class limited LIFETIME warranty and amazing customer support from PROLINE. You ever have an issue with your tester send it back and will replace it at no charge.

## Images

![Proline Power 7-Way Trailer Circuit Tester w/ 6 Function LED Indicator, 7-Blade Electric Wiring Adapter - Image 1](https://m.media-amazon.com/images/I/61jlokTezDL.jpg)
![Proline Power 7-Way Trailer Circuit Tester w/ 6 Function LED Indicator, 7-Blade Electric Wiring Adapter - Image 2](https://m.media-amazon.com/images/I/61OcTsrqf8L.jpg)
![Proline Power 7-Way Trailer Circuit Tester w/ 6 Function LED Indicator, 7-Blade Electric Wiring Adapter - Image 3](https://m.media-amazon.com/images/I/71ogawBdGTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    A+
  

*by E***R on Reviewed in the United States 🇺🇸 on December 27, 2019*

Good

### ⭐ 1.0 out of 5 stars







  
  
    Unusable on  2015 GM trucks
  

*by L***E on Reviewed in the United States 🇺🇸 on February 15, 2019*

When inserted into the truck plug the lights are on the bottom, with the way the bumper is you cannot read the lights unless you use a mirror.

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**Shop now:** [https://www.desertcart.it/products/103322836-proline-power-7-way-trailer-circuit-tester-w-6-function](https://www.desertcart.it/products/103322836-proline-power-7-way-trailer-circuit-tester-w-6-function)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-23*