Features [Smart Remote Control] Support for Tuya APP control, this WIFI metering circuit breaker allows remote control of switches in your home from anywhere, anytime. [Leakage Protection] Isolated structure designed, this smart leakage switch is anti interference, adopts damp resistant circuit board, safe to use in wet environments, could rapidly cut off power in 0.04s in case of leakage. [Voice Control] This WIFI circuit breaker supports most Al smart speakers on the market, bringing you a smart life style where you can control your appliances even while lying down. [Scheduled Switching] With the timer switch function, you can plan your life and schedule the timing of your appliances freely. [Prepaid Limiting Function] This metering circuit breaker automatically monitors power consumption changes for 24 hours, will automatically trip and cut off power in case of overdue payment. Specification: Item Type: WIFI Metering Circuit Breaker Material: PC flame retardant Model: ZXB3 125W Rated Voltage: AC400V 50 60HZ Rated Current: In 63A Frame Pole Current: 125A Life: Mechanical life 10,000 times, electrical life 6,000 times Overvoltage Action Value Setting Range: AC240-300V Overvoltage Recovery Uvor: AC220-250V Undervoltage Action Value Setting Range: AC140-190V Undervoltage Recovery Value Uvur: AC170-220V Undervoltage Operation Delay: 0.5-6s Installation: 35.5 x 75mm standard guide rail RS485 Communication Baud: 9600 Communication Address Range: 1-247 Package List:1 x WIFI Metering Circuit Breaker2 x Antenna1 x Antenna Base1 x Terminal1 x Instruction Manual Package List 1 x WIFI Metering Circuit Breaker 2 x Antenna 1 x Antenna Base 1 x Terminal 1 x Instruction Manual