Feature: 1. WIFI INTELLIGENT METERING LEAKAGE PROTECTOR: Bind the device under WIFI state, mobile phone remote control unlimited distance, electricity, current, voltage, leakage real time display, with prepaid function, open a new age of intelligence 2. MULTIPLE PROTECTION: Overcurrent, overload protection, overvoltage and undervoltage protection, leakage protection can be set on current voltage amperage power meter by yourself. Electrical appliances use too much electricity, which can cause wires to heat up and cause fires. Overcurrent protection can cut off the power supply in 0.1 seconds to prevent fire, and troubleshooting can recover by itself 3. COMPLETE FEATURES: WiFi photovoltaic smart meter has the most basic and practical functions, such as WIFI Bluetooth, voice control, APP control, timing control, prepaid recharge, working status display, power real time display, power reset, adjustable parameter 4. REAL TIME DATA DISPLAY: WiFi smart energy monitor support power, voltage, current, temperature, leakage value display on the same interface without switching, the data is more intuitive, a meter for multi purpose, can completely replace self duplex over and under voltage, electricity meter, leakage circuit breaker, reclosing, current limiter, life is more convenient 5. TIMING AND VOICE CONTROL: The WiFi smart photovoltaic breaker allow you to intelligently and fully control your connected device through the APP timing feature, allowing you to plan ahead for the exact time to automatically turn the device on or off. Voice control is also easy, providing more convenience for your smart life. When your hands are not free, you can freely control connected devices by voice Specification: Item Type: WiFi Photovoltaic Smart Meter Model: DDS6619 WIFI Material: PC flame retardant Power Supply Voltage: 110V 220V Operating Voltage Range: AC80V-400V Installation Method: 35mm guide rail installation Wifi Control: Mobile phone smart for tuya APP Undervoltage Protection: 80V-210V(adjustable)(default: 175V)(this parameter is only set on the App) Overvoltage Protection: 120V-300V(adjustable)(default: 275V)(this parameter is only set on the App) Overcurrent Protection: 1.0A-100A(accuracy 0.1A)(adjustable)(default 63A)(this parameter is only set on the App) Leakage Protection: 10-150mA(default 50mA), this function can be turned off(this parameter is only set on the App) Reconnection Time(delay time): 10s-99s(default 30s)(this parameter is only set on the App) Overcurrent and Leakage Protection Time: 1-30 Off(default: 5), this function can be turned off(this parameter is only set on the App) Overtemperature Protection: 10-85℃(this parameter is only set on the App) Four Timing Modes: Timing mode, countdown mode, cycle timing, microswitch(30 sets of timing settings) View the power input of photovoltaic power generation to the State Grid, The APP can view the power output input to the State Grid by time, date, month and year. Package List: 1 x Smart Circuit Breaker 1 x User Manual