... CE RS-232 interface VC8145 4 7/8 bench dual display digital multimeter DMM 80000 digit Feature:1,Large LCD,High contrast,Wide ... frequency,1%-99% Duty cycle,1800 pcs wave output;6,Single analyzed:(AC+DC) measuring synchronous,(AC+Hz) measuring synchronous,(DC ... ,(Hz+Duty) measuring synchronous,(°C+°F) displaying synchronous;7,Resistance measuring: 0.01Ω-80MΩ;8,Capacitance measuring: 10nF-100μF;9 ...