Bench Digital Multimeter with thermometer and software for Function Generator via RS-232 Computer Interface. It has a large LCD display with white backlight, high contrast, and wide visual angle. It has a dual display: The main display 80000 counts, The secondary display 80000 counts, analog bar 21 segments, with unit & function symbols. It has 50 measurement functions including DCV, ACV, DCA, ACA, Ohm, CAP, Hz, TEMP, Diode, Continuity and others. The frequency range is up to 80MHz. The standard function generator has 18 waveforms, 1% to 99% Duty cycle, 1800 pcs wave output. The resistance measurement range: 0.01 Ohm - 80 MOhm. The capacitance measurement range is 10PF - 100uF. The temperature measurement Range: -58°F to 2502°F, - 50°C to 1372°C. Photoelectric isolated RS-232 computer interface. AC measurement - High accuracy RMS, Wide measurement AC+DC function. It also has auto data refresh hold.