C. ITH3311 Series Digital Power Meter Features ■ 24-bit color 4.3-inch 480 x 272 color LCD screen, English and Chinese interface ■ PLL (phase-locked loop) technology, faster measurement speed ■ AC and DC test ■ Wide current measurement range ■ Input signal waveform display: Voltage and current can be displayed simultaneously or separately ■ Higher measurement accuracy and faster data update rate ■ Rich display mode: Traditional four-window display Full parameter full screen display ■ Higher frequency test range and wider frequency response ■ Multiple harmonic analysis display modes: List mode,Histogram ■ Data Record Function Application ■ Appliances TV, refrigerator, air conditioner, washing machines, vacuum cleaners, water heaters and other power efficiency testing ■ Industry Electric machinery, motor, transformer, charger, power and other power test