California Prop 65 WarningThis product can expose you to chemicals including DEHP; which is known to the State of California to cause cancer and birth defects or other reproductive harm.
Additional Product Features
NotesDescription--Electrical Multi-Tester
Sub TypeElectrical Multi-Tester
Part TypePower, Air, and Hand Tools and Accessories
If you are looking into purchasing a tester for your flat-4 trailer wiring on your tow vehicle, the Hopkins is the one to get. It seems to mimic the resistance/load found on a trailer thus giving a true indication of your wiring. I say this because I've tried the ones with the green LEDs and they indicated that all was well. But upon connecting my trailer one side had weak and rapid flashing on the right side with my vehicle lights on. The Hopkins behaved exactly as my trailer did. I found the problem in my tow vehicle and corrected it. The trailer functioned properly and so did the Hopkins tester.