Gw Instek GPM-8213 Digital Power Meter Features 4 TFT LCD Two data display modes Standard : two major measurement items + six secondary measurement items Simple : displaying test data of four different measurement items Met the requirement of IEC 62301 power measurement Voltage/ current test frequency bandwidth : DC~6kHz Watt resolution : 1mW Lowest current range : 5mA, resolution : 0.1uA Current/voltage measurements reach CF=3 for distorted wave and CF=6 for half range W-h (power vs time)/A-h (current vs time) integration function Total harmonic distortion measurement Front panel test terminal Standard interface : RS-232C, USB device, LAN Optional interface : GPIB Optional test fixture : GPM-001