... Simple operation interface, easy to usePS/2 port support standard PC keybaordUser-defined current range to fit meters of different rangeVoltage ... creep voltage and startup currentRS232 can transfer test data to PC, and used to upgrade the softwareData manage function on ... Voltage(V): 100220380660, Resolution:0.01%RG, 0~120%RGCurrent: User-defined range, Resolution:0.01%RG, Max 50APhase: 0~360 ...