Feature:1. Automatic Safety: This device intelligently checks voltage levels, automatically disconnecting loads during overvoltage or undervoltage conditions and restoring power when normal levels are detected.2. Customizable Settings: Equipped with a smart control chip, this protector socket allows you to set specific current and voltage levels, ensuring safety by automatically cutting off power when limits are exceeded.3. Easy Installation: Featuring a plug and play design, this adapter installs swiftly and conveniently, providing safety directly to appliances like refrigerators against voltage fluctuations and surges.4. LED Display: The clear LED screen provides real time updates on device status and easy use, while allowing you to calibrate voltage for accurate readings within a -20V to 20V range.5. Versatile Usage: Designed for safety with a protective cover for ports, this socket is suitable for a wide range of appliances including refrigerators, air conditioners, and washing machines.Specification:Item Type: Automatic Voltage Current Safety SocketMaterial: Flame Retardant PCEffective Current Range: AC 0.1-63AFrequency Range: 40-70HzScreen Refresh Rate: >1000HzMeter Update: 0.1-1sMeter Algorithm: Root Mean Square/RMSOver Under Voltage Differential: 5VTimer Range: 1-999sAction Time: 0.1-10sPower On Delay: 1-999s (default 5s)Recovery Delay: 1-999s (default 30s)Over Voltage: 130-300V (default 270V)Over Voltage Recovery Value: 125-295V (default 265V)Under Voltage: 80-210V (default 170V)Under Voltage Recovery Value: 85-215V (default 175V)Over Voltage Action Delay: 0.1-10.0s (default 0.5s)Voltage Correction: -10%-+10% (default 0V)Over Current: 16A (default 63A)Over Current Action Delay: 0.1-10.0s (default 1.0s)Continuous Over Current Count: 0-20 times (default 0 times)Current Correction: -10%-+10% (default 0A)Frequency Correction: -2.5%-+2.5% (default 0Hz)Features:Over Voltage Current SafetyUnder Voltage SafetyOver Current SafetyAuto ReclosingVoltage Current DisplayAdjustable Voltage, Current TripAuto Reclosing Time.Package List:1 x Adjustable Voltage Current Safety Socket1 x User Manual