Review on 🔌 Enhanced Online LED Store 7-Way Blade Trailer Wiring Tester with Nickel-Plated Copper Terminals: Continuity Test, Rugged Material, and 7-Pin Trailer Light Wire Circuit Testing by Jose Baldwin

Just didn't work. I turned it on, followed all the instructions in the online manual, and not a single light came on. Of course I replaced the fuses and the problem was solved, but the light still wouldn't come on. I then hooked it up to the trailer and the trailer lights worked with no errors. I'm sure it would have been a great product if it worked, but it didn't.