... combination of a variety of probeChart 1. Large LCD display 2. Waveform selection key 3.InT strong ... the right way into contact holes and patch holes3.Open patch on the protection of film, posted on ... affect the work mainly)Open machines Press Open &close key to open machines, after ring then open machines, LCD lights up, this ... 1. If you dont use machine, do not open a long time.2. Do not easy to ...