Arrives before Christmas 
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
This tester helps you to quickly identify problems in your trailer wiring. It tests the left turn, right turn, tail/marker, brake and backup circuits to indicate the level of current in each circuit. It also tests the voltage of the trailer battery.
Features:
This diagram illustrates the error codes that the trailer tester will display if it detects faults in the currents of your trailer wiring.
California residents: click here
Average Customer Rating: 4.9 out of 5 stars (10 Customer Reviews)
This tester helps you to quickly identify problems in your trailer wiring. It tests the left turn, right turn, tail/marker, brake and backup circuits to indicate the level of current in each circuit. It also tests the voltage of the trailer battery.
Love this machine. Took the guess work out of trouble shooting wiring issues in our customers vehicles trailer receptacles. Cut down on time therefore saving the customer money which in turn brought in return busines. I recommend this equipment to all shops that need to diag truck/trailer hookup problems.
I find this product very helpful in analysis and repair of trailer wiring harnesses. It allows me to test circuits without a tow vehicle present. It also allows me to test individual circuits. Which is very helpful.
Paul B.
11/1/2020
Great
The tester is a wonderful asset to have, to test and see if your trailer lights are working. Or to help you find a problem in your trailer lights or electric brakes. Especially when you are working on the trailer by yourself. The folks at etrailer were a great help when I was purchasing the tester, they helped me with all the questions I had on the tester before I purchased it.
P.S.
Thanks Chris
This product works as advertised. I have owned it for a year now with no problems and use it every day. Battery life is longer than I expected. Some great improvements would be to keep the park lights on constantly instead of blinking. Also the brake test should be on constantly instead of pulsing. There should also be another test button for just brake lights.
Otherwise this thing works awesome. The US price is good but with the exchange rate in Canada most techs will just build their own.
This is a must have if you own various equipment trailers or any other trailers. This unit allows you to test a trailer quickly in the yard or in the shop and locate any wiring issue you may have. It's small and very portable.
An absolute must for any company.
Excellent product! Use multiple times a day for work. ETrailer has been awesome to buy from. Great product selection & fantastic customer service.
Great investment
Very nice unite. good for a one man job to narrow down a trouble circuit with out hooking up to truck and blowing fuses..
Excellent product !! Great support after the sale
Compact, very easy to move around.
Do you have a question about this Electrical Tool?
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Jon S.
2/27/2019
Still performs exactly like I need it to.