Exactly what I needed! I was wondering if my wiring was off and this confirmed that L1 is not working correctly. Now I know what need to be corrected. This will be huge when traveling to be sure any power we hook up to won’t ruin our electrical system.
Well built, easy to use, and with the error codes printed right on the unit means no searching for what they mean. Built with the user in mind with with quality parts like nickel plated pure copper wire, not the CCA stuff and high surge protection.