Best 7 Way Plug Tester Reviews & Alternatives

A 7 way plug tester can be a great investment for those who want to simplify their work needs. With the increase in standing desk popularity, many people looking for the best 7 way plug tester feel overwhelmed by the wide range of options available. From traditional 7 way plug tester  to convertible models, the dizzying slew of choices might make you feel the need to take advantage

What are the features that make the best 7 way plug tester? These compact and convenient 7 way plug tester are easy to install and easy to use at the same time. And then there’s the price! Below, we’ll run through the average 7 way plug tester cost of some of the most popular types, so you can get a good idea of where to start with your budget.

The reasons you should trust us

We recommend products in each review using an intensive research process, spending hours combing through the best available models on Amazon. For a product to make our list of top picks, it must hold a solid sales record on Amazon, have consistently positive customer reviews, and offer unique features, among other factors. After narrowing down our recommendations, we conduct additional research to ensure that the products meet our standards. Once we conclude the research phase, we craft a well-rounded, user-friendly article that includes our recommended products and additional information to help homeowners like you make the right purchase. The following key factors are considered when analyzing:

  • The quality of 7 way plug tester
  • Each product’s design
  • How it’s built
  • Price comparison
  • How durable [replace-keyword] is
  • Features
  • Cost-effectiveness
  • Versatility
  • Product usability
  • The functionality of the 7 way plug tester
  • Performance of the products
  • Product dimensions and weight
  • Return policy and warranty, and more.

Best 7 way plug tester & Features

1. CURT 58270 7-Pin RV Blade Trailer Wiring Towing Vehicle Socket Tester, Black

Features :

  • VERSATILE. Quickly and confidently confirm the functionality of your vehicle’s trailer wiring harness with this connector tester for the taillights, brake lights, reverse lights, turn signals, electric trailer brakes and auxiliary power
  • SIMPLE TO USE. For each electrical function, an LED lights up indicating a good signal. Just plug the wiring tester into your vehicle’s socket and have a helper check the LED signals as you activate them from the driver’s seat
  • EASY GRIP. Plugging in this 7-way trailer light tester into your vehicle is easy with its ergonomic design. It features two hooks on either side of the tester for a better grip when plugging in or unplugging
  • LONG-LASTING LEDS. To produce a bright, easy-to-read signal and ensure long-lasting use, this vehicle-trailer wiring tester is constructed with LED diodes
  • DURABLE HOUSING. To resist the elements and maintain reliable performance, the housing of this tow wiring tester is made from durable black plastic that will never rust or corrode

Additional Info :

Color black
Item Dimensions
Height 2
Width 3
Length 5
Weight 0.23

2. 7-Round Pin Trailer Circuit Tester 7865L

Features :

  • Leading Manufacturer Of High-Quality Products
  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind
  • Constantly Modernizing Our Powerful Devices To Meet The Demands Of The Modern User

Additional Info :

Color Factory
Item Dimensions
Height 2
Width 4
Length 9
Weight 0.55

3. MAXXHAUL 50155 7-Way Blade Trailer Wiring Tester

Features :

  • Designed to test your wiring harness by simply plugging the tester inline between your tow vehicle and trailer, turn on your lights and check the easy to read LED indicator lights.
  • Pin point and trace the problem if it’s on the tow vehicle or the trailer being towed
  • Durable molded plug construction will work in different weather condition and provide many years of service
  • Simple plug and read design to allow you to effective test your trailer lights, isolate the problem and save your valuable time and money
  • Compact design allows you to store in your tool box, glove compartment or anywhere to be ready when you need it

Additional Info :

Item Dimensions
Height 3
Width 2
Length 5

4. Trailer 7 Pin Wiring Tester, Trailer Towing Light Wire Circuit Blue Wiring Tester Plug Connector 7 Pin 12V

Features :

  • 【7 Pin Trailer Plug Tester】: This is a standard 7 pin wiring tester that is widely used in caravans, RVs, recreational, vehicles, trucks, vehicles, trailers, etc.
  • 【European Standard】: This is the European standard trailer connector, 7-pin trailer rv connector tester has one side connected to the 7-pin plug of the trailer and the other side is connected to the 7-pin socket of the car; the tester can quickly indicate whether the fault involves the car wiring Or trailer wiring, which can effectively test the problem of 7-pin plug and socket connection, easy to use.
  • 【Easy to Use】: 7 way trailer plug tester supports simultaneous display of trailer and RV taillight signals, plug and play design, no cutting or splicing required. It can be used directly on the car, but professional installation is recommended.
  • 【ABS Material】: Trailer plug tester is made of high quality ABS plastic, which has good insulation and best durability; the contact material is copper, which ensures better connection, such a practical trailer test tool, you will need it.
  • 【Note】: This product is randomly delivered by the new and old models, and the parameters are the same, please make sure you don’t mind. If you have any questions about the product, please contact us.

Additional Info :

Color popular
Item Dimensions
Height 3.93700787
Width 3.93700787
Length 3.93700787
Weight 0.3747858454

5. ONLINE LED STORE 7-Way Blade Trailer Wiring Tester [Nickel-Plated Copper Terminals] [Continuity Test] [Rugged Material] 7-Pin Trailer Light Wire Circuit Tester

Features :

  • STRAIGHTFORWARD TRAILER LIGHT TESTING – Simply plug the tester into the tow vehicle, turn on the lights, and check the easy to read LEDs.
  • IDENTIFY PROBLEMS QUICKLY- In addition to the bright LED indicators, clear labeling of each light allows you to identify the working and faulty circuits at a glance.
  • NO TOOLS NEEDED – Excellent plug-n play design means you don’t need anything else to effectively test your 7-way blade socket.
  • LONG LASTING CONSTRUCTION – Designed to be weather, corrosion, and impact resistant for years of reliable service.
  • CONVENIENT COMPACT DESIGN – Easily store it in your glove box, door pocket, or tool box. Take it with you and always be prepared.

Additional Info :

Item Dimensions
Height 2
Width 3.74
Length 6.5
Weight 0.25

6. NEW SUN Heavy Duty 7-Way Trailer Light Circuit Connector Tester w/ LED 7 Pin Trailer Plug Tester 7 PIN Round RV Blade Electric Wiring Tester

Features :

  • This 7 way trailer plug tester tests for tail, brake, reverse, turn signals, brakes and auxiliary power
  • Constructed with 6 LED lights for long-lasting use, plastic body is designed to be weatherproof and corrosion resistant
  • Simply plug the wiring tester into 7 blade RV style tow vehicle plug, fits for most vehicles with 7 pin vehicle-side socket
  • Affordable use-instead of the high cost of the maintenance shop, allows you quickly identify and fix problems with trailer socket circuits
  • Small size fits easily in glove compartment, pocket or tool box etc. Take the tester with you and always be prepared anywhere

Additional Info :

Color black

7. Oyviny 7 Way Blade to 12V Power Adapter with LED Circuit Tester, 7 Pin RV Blade to 4/5 Way Flat Adapter Trailer Cigarette Lighter Connector for Truck

Features :

  • Multi-Tow Trailer Adapter. 7 way to 12 volt power adapter not only converts 7 way flat blade to a 4-way or 5-way trailer connector, also adapts 7 way into 12 volt power cigarette lighter socket
  • 12V Power Outlet. 12V power can be used to power air compressors, spot/flood lights, inverters, freezer, electric coolers in the back of your truck. Put 12v outlet where you need it, plug and play, much easier solution than running wires from battery to the truck bed
  • LED Circuit Tester. 7 way adapter also can be use as a 7 pin trailer tester to check the connectivity of taillights, brake lights, reverse lights, turn signals, electric trailer brakes and auxiliary power
  • Standard 4&5 Way Output. This adapter enables you to tow 4 way or 5 way trailer, adding versatile towing options for your vehicle. 4/5 way socket can be used to connect trailer taillights, brake lights, reverse lights and turn signals
  • Widely Use. 7 way cigarette lighter plug adapter works fine with any factory OEM 7 pin plug, suitable for Truck, Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM, Nissan, Toyota, GMC and Jeep etc

Additional Info :

8. 12V 7-Pin Trailer Tester Tool Tester Plug Socket for Caravan, RV, Recreational ,Vehicle, Truck, Vehicle, Trailer Towing Tow Bar Light Diagnostic Tool (2pcs)

Features :

  • High Performance : This 7-Pin trailer tester plug is made by high quality ABS and Copper, frosted surface, 7 pin trailer tester plug is durable and reliable to use, ensure maximum strength and durability for long lasting usage. Such a practical trailer tester tool you will need it(It needs a 7 pin blade)
  • Wide Application: The 7 pin trailer truck vehicle tester plug is widely suitable for 12V Caravan, RV, Recreational ,Vehicle, Truck, Vehicle, Trailer, etc. Size: approx. 20 * 5 * 4cm; Battery Type: 9V (not included, you need additional purchase)
  • Function: This 7 pin trailer truck vehicle tester plug has one side to connect the 7-pins plug of a trailer and another side to connect the 7-pins socket of a car. This tester indicates quickly if a failure concerns the wiring of the car or the wiring of the trailer, which can effectively test what the problem is for 7 pins plug and socket connection.
  • Reliable Quality: The 7 pin trailer truck vehicle tester plug with safe and dependable performance, reasonable design. Deft appearance, convenient usage. Reliable quality and delicate workmanship persuades you to take this one to replace the old.
  • Service Guaranteed: 100% Brand new 7 pin trailer tester plug, come with english guide paper. Professional, premium aftermarket replacement. In terms of any problem of this product, you can send emails as soon We will provide you excellent customer service and 100% satisfaction warranty. BUY WITH COFIDENCE!

Additional Info :

Color popular
Item Dimensions
Height 1.574803148
Width 1.968503935
Length 7.6771653465
Weight 0.3747858454

9. WATERWICH Heavy Duty 7-Way RV Blade Connector Tester 7-Way Trailer Light Tester Replacement for Tow Truck Commercial Vehicle SUV (7-Way Connector Tester)

Features :

  • Essential safety tool for quick checking of vehicle wiring configuration/status for towing,The easy and quick way to test trailer circuits on most trucks
  • Made from LED’s and ABS housing that ensures durability, Bright Red LEDs tell you if specific functions are working properly
  • Tests 7-way for taillights, brake controller output , back up or reverse circuit center pole, right turn/brake, left turn/brake and 12-volt power feed,Tests 6 separate trailer light functions
  • 7-way flat tester can check all your trailer light circuits on your vehicle,Highly Recommended every time you hitch a new trailer for safety assurance,Fits all standard 7-pin wiring configurations
  • Simple to use – no batteries or wiring needed; compact size 13.5*4.1cm(5.3*1.6inches”) easy to store,Works with both the common 7 way trailer plug used on most SUV’s, Trucks, Boats, Trailers Campers, Caravans, Food Vans and other Towed Vehicles

Additional Info :

10. 7-Way Trailer Plug Tester (1 per pack)

Features :

  • Crimp Supply

Additional Info :

Buying Guide for 7 way plug tester

To help you buy the perfect 7 way plug tester for your needs and requirements, we have mentioned some of the best 7 way plug tester in this article. Not only that, but you can also learn about their differences as we have mentioned their major features and options.

To help you on your way, we’ve listed some questions you may want to consider before making any purchase.

  • Why do I want to buy this?
  • Do I need it or just want it?
  • Am I getting the best deal?
  • How often will I use it?
  • Can I pay cash for it?
  • Is it budgeted for?
  • Can I borrow it?
  • Can I get it used?

Although, if you still want to learn more about these 7 way plug tester for buying the perfect one, we are here with a detailed buying guide just for you. Since this buying guide is related to 7 way plug tester, you can find many major features and aspects related to 7 way plug tester. Thus, you can easily choose the perfect one by going through this article until the end.


The 7 way plug tester should last more than one use and hold up against normal wear and tear. We recommend reading the product description before purchasing 7 way plug tester to ensure they’ll last a while. Additionally, pay attention to the wash instructions.


When choosing the best 7 way plug tester, you must consider its versatility.  It is important to make sure that your unit can be used for performing different tasks.

For instance, if you need to use your unit for other purposes in any other materials, getting the one with a versatile design will be an ideal option for you.


The brand is another crucial factor you must consider while looking for the 7 way plug tester.  You will find both well-known and unknown brands in the market. If you are looking for a reliable and durable model, I recommend getting one from a well-known brand.

They use high-quality materials and the latest technology to manufacture their products.  As a result, you will be able to get a durable and long-lasting 7 way plug tester.

Ease of Use

While choosing the 7 way plug tester, you must ensure that it is easy to use.  It is important to get the one that comes with a user-friendly design.


As a result, you will be able to use your unit for a long time without facing any discomfort.  Also, getting the one that comes with an easy-to-use design will help you save a lot of time and effort.


The price is another essential factor you must consider while looking for the 7 way plug tester.  You need to get the one that fits your budget perfectly.

Getting the one that comes at an affordable price will help you save a lot of money.  However, you must ensure that it meets your needs and requirements perfectly.


The 7 way plug tester should be easy to carry for you. Therefore, consider the size, style, design, and all the other basic features to check for the actual portability of the device. Portability comes with comfort and ease, and you need to look for all the features to look for a suitable 7 way plug tester.


The price of your 7 way plug tester will depend upon its features and the overall quality. There are some inexpensive options in the market, but they may not have the best features.

The term ‘budget’ is broader because it completely depends on the user who wants to purchase the 7 way plug tester. In this case, you can prepare a list of all the features you want to have in your 7 way plug tester. Then, look for the product that comes with these features and works well.

After that, you should carefully check the prices of each air compressor machine on your list. This will give you a precise idea about the budget you need to prepare for the 7 way plug tester you should go after.


It is important to consider your unit’s weight while working in congested areas. Getting a lightweight model will be ideal if you need to work regularly in difficult-to-reach places.

However, if portability is not your concern and you are looking for a durable model, you can go for the one with a little heavyweight.


The warranty of 7 way plug tester is when the manufacturer offers free repairs or replacements for any damages that occur to the product.

You need to check the warranty of 7 way plug tester before buying it, as you don’t want a product that doesn’t come with a warranty.

At the same time, you also need to remember that some 7 way plug tester come with a longer warranty than others, so select one with a long warranty if possible.

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