Demystifying Earth Ground Testing! 🤔 Our latest video shows you exactly how to use the UNI-T UT278 Series (UT278B/C/D) for reliable measurements. We demonstrate the clamp-on, 3-wire, and 4-wire methods PLUS how to export data via USB. Clear wiring diagrams included! Ensure safety and accuracy in your electrical work. Watch now! 👍 Like what you see? Share it with a colleague! youtu.be/0s__2fqjcHU #UniTTools #GroundTest #UT278 #ElectricalTutorial #Measurement #WiringDiagram #ElectricalWork