主要特性与技术指标Full-featured 5 ½ digit DMM5½ digit, 120,000 counts resolution10 measurement functions and 8 built-in math functions4-wire low resistance measurement with 0.001 mΩ resolution0.025% DC voltage accuracy Full-featured 30 W, DC power supply30 V/1 A, 100 mA/30 V, 8 V/3 A and 1000 ...