Current Transformer, Energy Meter Calibration, Power Quality Analyzer manufacturer / supplier in China, offering Gfuve T-212 Electronic Contact Resistance for Test Set with 200A and 600A PT Tester, Gfuve T-212 Electronic Measuring Instrument 200A and 600A Contact Resistance for Test Set with PT Tester, Gfuve Q110 Handheld 1000A Compact Ring Type Current Probe and so on.