this series of three-phase power monitor, installed in an embedded way, with beautiful appearance, reliable operation, and convenient field wiring and operation, is a digital power meter with integrating high-precision power parameter measurement, switch input, relay output, analog output, and network communication. and the meter can be widely used in substation integrated automation system, intelligent high and low voltage switch cabinet, low voltage distribution automation system, building and energy monitoring system and other important transformer and distribution situations.