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【QUICK TESTING】 7 pin trailer plug tester integrates 7 signals from your , ensures quick 30-second check including tail marker (TM), (BK), backup (BU), left turn (LT), right turn (RT), stop (LT RT), and 12 volt auxiliary power 【PLUG & PLAY】This trailer wiring tester is equipped with a standard 7 way connector, easy to install, ideal for trailer, RV, , pickup, camper, and other towed 【180° ROTATABLE 】Our 7 round pin trailer light tester is 180° rotatable—just loosen the screw and rotate the teste
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