three phase standard reference meter with portable programmable voltage and current source

GF303D Portable programmable Three Phase AC Voltage And Current Source is suitable for power department, measuring department, quality control department, research units, and institutions of higher learning, and electric energy meter, power distribution terminals, power supply management, load control, power quality, reactive power compensation device and the production of enterprise etc.
GF312V2 portable three phase multifunction energy meter calibrator is with comfort design, small size, and light weight. It is suit for electric power departments, measuring and quality examining departments and electric lab to field use. and they can be standard test equipment in you laboratory!