BEHA-AMPROBE
精准数字万用表, 口袋式, 6000计数, VolTect?和AutoTect?
FLUKE
数字万用表/回路校准器, ProcessMeter?, True RMS, 4000计数, HART模式
Digital Multimeter / Loop Calibrator, ProcessMeter™, True RMS, 4000 Count