... department. Main Functions and Features: 1, Test single-phase and three-phase induction type, mechanical and electrical meter; and it can ... constants of watt-hour meter; 2, Real-time field measurement three-phase voltage, current, active power, reactive power, phase, power ... operation, convenient; the large capacity memory, it can store 5000 sets of data; 12, With RS232 interface, which can be the ...