The Z300 by Emazys is a revolution in PV string field testing.
Why?
Because this new and patented instrument measures a critical string parameter that was previously impossible to do; Series Resistance of an operating PV string. Add to that an all-in-one Voc, Isc, IR and string earth fault locator, and you get the industry’s most versatile and time saving PV tester. No other instrument comes close.