Review on AP-770D TRMS Digital Multimeter: High Precision Tester for NCV Voltage, Current, Resistance, and More by James Jenkins

Shown to a friend and he ordered almost immediately. He and I compared two instruments with a newly calibrated Fluke 179 and both were exactly the same as the Fluke 179. The AP-770D has one digit more than the Fluke 179 so the resolution is higher. I am comparing to the Fluke 179 because it is the standard instrument used by the company I work for. Needless to say I am more than satisfied with this instrument.