Electronic instrument,RS232 interface jack; Bar grapf; touch-tone, no dial ... , streamline design, 2)USB interface can connect to computer ,Large LCD anoloq bar graph display 3) Unit symbol display,make the ... )HzOperation wayAuto rangeMax. display 5999LCD Size68×47mmPower3V (1.5V×2) Electronic instrument/Digital Multimeter VICTOR 70C