Multifunctional Testing Instrument (On-site Testing Instrument for Kilowatt-Hour Meter) Main functions: (1) measuring the single-phase, biphase and three -lines, three-phase and four–lines electric energy and power (2) checking three-phase or single-phase turnplate and electric energy meter of electron impulse by photoelectricity...

Series Vacuum Oil-filter This kind of vacuum oil-filter has combined original design, compact structure, light and flexible features, low power consumption, high effect, and convenient operation together. Besides, adding high effective impurities-absorbers during the testing period can filtrate water, impurity, and harmful gas, and also...