... true value of 3 phase voltage , ampere , active power , reactive power , power factor , Kwh , KvarH ect. It also can generates ... ampere , reactive power ,active power , apparent power , power factor , frequency , Kwh , KvarH ect3. Total active power value and total reactive power value accumulation memory ... 20mA DC output.6. Switch input : 2 loop S1-S2 , used in remote control the electric swith status ...