TESTER,Function Generator,Counter,Digital Multimeter,DC Power,Audio Amplifier,5 ... .1%+50mVrms CC≤0.1%+70mVrms4 Digital Multimeter4.1 Features Auto range,LCD display with digit and strip figure to show ... power IC LM3886TF,has protection of overtemperature,overvoltage and short-circuit,input and gain adjustable,INT/EXT speaker.5.2 Specifications5 ...