FUNCTION INTRODUCTION ¡ñTest range is wide, the highest can attain 5000 ¡ñTest speed is fast, finish three phase test in 10s ¡ñDon¡¯t drop time clock and date display, date storage function ¡ñHigh and low voltage protection function ¡ñTransformer short circuit, turn-to-turn circuit protection function ¡ñThermal printer output function, it is fast and silent ¡ñHorizontal chassis design with convenient and practical site operation ¡ñTotally new three-phase power supply technology to make accurate measurement in arbitrary angle and variable ratio is of phase-shifting transformer. It is your good assistant in angle measurement