MICTUNING 4 and 7 Pin Trailer Plug Tester, Multi-Function7 Way Blade & 4 Pin Flat Trailer Light Circuit Tester with 6 LED Indicators for RV Truck Trailer Socket Tester 

Specification:

Condition:100% Brand New

Material:ABS plastic, anti rust and anti corrosion

LED Indicator color: Green

Size: As pics shown

6 Light Functions:LT/RT/12V/TM/BK/BU

Package Included:

1X 4 and 7 Pin Trailer Plug Tester

Features:

*  2 in 1 Trailer Light Tester - Combines both 4 way circuit tester and 7 way trailer light tester, it's able to test both 4-pin and 7-pin connectors. 
Makes an easy work of testing trailer connections.

*  7 Pin to 4 Pin Trailer Plug Adapter - 7 way trailer tester can be also used as a 7 way to 4 way trailer adapter, converts the vehicle-side 7 pin blade output to a 4 pin flat adapter

*  6 Light Functions - This tester used to test 6 separate trailer light functions, testing taillights, reverse lights, turn signals, electric trailer brakes and 12V auxiliary power on your vehicle 

*  Bright LED Indicators - Green LED indicators with clear labeling to tell you which of your towing vehicle lights work or not, quickly troubleshoot wiring issues

*  Wide Application - Widely used for most Trucks, Boats, Trailers Campers, Caravans, Food Vans and other Towed Vehicles.  Made from  premium ABS plastic, anti rust and anti corrosion. Tin-Plated copper terminals for high conductivity

About the item:
MICTUNING 4 and 7 Pin Trailer Tester Combines both 4 way circuit tester and 7 way trailer light tester.
You can use this tester to check the electrical connections between a tow vehicle and a trailer.
Feature 6 Bright LED Indicators, also it has markings on it so you know which connections work and which do not.
Also acts as 7 Pin to 4 Pin Trailer Plug Adapter, converts the  7 pin blade output to a 4 pin flat adapter.

Notes:

*Tips: If LEDs are dim or flickering, pls check for loose or corroded ground wire.
To test the led tester, use 12v batter charger to determine if LEDs power is up.

* The trailer tester will upside down when testing for 2017 Newer Ford/GMC/Chevy model. Can't test LED lighting system.

* Doesn't work with vehicle has a lamp-out sensor, such as BMW, VW, Audi, Mercedes-Benz, Porsche etc.

* Due to the lighting and screen settings, the real color may slightly different from the picture.

* Please allow slight manual measurement deviation for the data.

* Please double confirm your vehicle model is exactly same as us before purchase.