One-man testing for male and female 7-Way round pin tractor-trailer plugs
Plugs into vehicle-side socket
LEDs indicate that each circuit is working
Includes a brass jumper; allows bypassing of troubled circuitry while on the road
Eliminates guesswork
Packaged with an extra jumper connector
“Winged” grip for easy removal from electrical connector
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7 PIN ROUND TRAILER CIRCUIT TESTER is rated
5.0 out of
5 by
4.
Rated 5 out of
5 by
Jrodeo from
Quick way to see if you have power a ground on trailer cordThis is a very convenient tool for checking power and ground on both sides of trailer cord
Date published: 2020-12-09
Rated 5 out of
5 by
Caterpillarguy78 from
Comes in handy and takes the guess work out of diagnosisI use this tool almost everyday , I work in a pretty busy trucking company and time is of the essence, a few other techs have borrowed this and love it and asked where I got it and usually within a week they have their own . I love it it is a must for any tech that works on big trucks .
Date published: 2015-09-08
Rated 5 out of
5 by
Dale from
Trouble shooting toolI use this product all of the time to test the trucks pig tail going to the 7-way recp on the trailer. It's a must for testing electrical problems. I would highly recommend it to any mechanic.
Date published: 2012-01-28
Rated 5 out of
5 by
jprx7kidd from
worth is weight in gold!must have, easy to use and very simple function, makes for easy diagnosis
