SPECIFICATION:Used for AC single phase active energy measuring. Wall-mounted installation type, smart ... Indicate of bypass stealing electricityDisplay data after power off Total transparent long type terminal cover designNear-infrared communicating functionFlip the screen ... 100)AReference frequency:50Hz, 60HzStarting current: 0.004IbConnection type choice: single phase two wires, L, L, N, NL,N,N, ...