Significant-frequency waveform, meter, capacitance, and resistance measurements in addition to continuity checks are all covered by only one list of shielded exam potential customers. No time is wasted acquiring or swapping prospects.Ca?ch ?ô?i ve? tru?ng th???ng x? s? mi?n Nam an toa?n nhâ?t chi?nh la? b?n hãy mang t?? ve? sô? ?o? ?ê?n t?i tr