... electrical inductance,frequency,temperature,triode transistor,magnification,forward voltage drop of LBD and onoff warning.It has ... protection function,strike fire circuit design for anti high voltage. Basic functionrangeBasic precision58C58DVoltage DC200Mv/2V/20V/200V/1000V ... Inductance √√Diode testing √√Audion test √√Onoff warning √√Low voltage display √√Data hold √√Auto power off √√Input impendance10M ...