1,Autoscale 2,Support USB for data transmission to PC 3,20 automatic measurements 4,FFT 5, ... /div (at BNC input) DC Gain Accuracy ±5% Max. input voltage 300V(DC+AC PK-PK,1M Ω input impedance,Probe attenuation ... +, -, FFT Lissajous figureBandwidth 25MHzPhase difference ±3 degrees Interface USB Data Cable (Transfer waveform data to a PC) Power supply 100V-240V AC, 50Hz ...