1.Professional Surge Protection:Effectively protects refrigerators and other appliances from high/low voltage, blackouts, spikes, momentary surges, brownouts, voltage fluctuations, and power failures, thereby extending the life of appliances. Significant savings on repair costs 2.Premium Flame Retardant Material:The appliance surge protector is made of high quality ABS material. It makes our home electricity monitor more durable and fire resistant. The flame retardant material can meet the UL94-V-1.0 grade test and experiment standard.Enough peace of mind to play a and protective role. 3.LED Digital Display-Wider Use: The updated design of the digital display clearly and conspicuously shows the current operating status. Compact wall outlet surge protector can be plugged in directly, suitable for all kinds of applicable equipment, refrigerators, air conditioners, zers, TV, ice makers, washing machines, microwave ovens, dishwashers, coffee machines, bread machines, water heaters, and electric fans, etc. 4.Adjustable Voltage Surge Protector:The outlet surge protector has an adjustable minimum and maximum voltage. It can be adjusted according to your needs when the product is energized. Press the "SET" key and adjust the high/low voltage protection value and delay value of the protector through the "+" and "-" keys