Hello There, Actually, I was very pleased with the product, until I realized after about 4 months that at the interface of the test leads to the plug, the insulation is broken and about 5mm copper can be seen. If something like that goes undetected can be fatal at a voltage measurement. I have the place immediately isolated. Then, when the same thing happened to the other test leads recently after 6 months I wanted to let them know, so that others pay attention.