Review on Sequence Presence Rotation Indicator Detector Test, Measure & Inspect by Mitch Garrido

This is such a functional value that I bought a second one. Does exactly what is expected of it. It's helpful to re-mark the phase wires with the traditional colors we use here in the US. I did this after checking the AB and C rotation with another much more expensive gauge. No surprises. Don't cry when you lose it. Go on!