... DSM228-02 single phase two wire electronic active energy meter, cyclometer display.The meter is used to measure 50Hz or 60Hz ... port of pulse output passive (polarity), may select increase a distant port of pulse output passive(nonpolarity),complying with ... V)110, 120 220, 230, 240, etc.Rated current(A)1.5(6), 2.5(10), 5(20), 10( ... 40)A,15(60), 20(80), 30(100),etc.Operation voltage ...