Applicable Equipment: The power surge protector suits for air conditioners, freezers, ice makers, washing machines, ovens, microwave ovens, dishwashers, coffee machines, bread machines, water heaters, and electric fans, etcAll-Round Safety: The wall surge protector can take full care of your home appliances. The shell is made from PC flame retardant material, which reaches the experimental standards of level test of UL94-5VA. And, the small and wall-mountable power plug converts any standard wall outlet into a surge-protected socket with no need for extra cords with its direct wireless plug-in designAutomatic Induction Protection: The surge protector outlet protects your electrical equipment from voltage spike, momentary surge, voltage fluctuation, and brownout by interrupting the current when the voltage is too high or too low. When the voltage exceeds the limit, it will automatically cut off the power to prevent the damage to the appliance due to low or high voltageDigital Display Function: You can see the current working status clearly even at a long distance. Digital display of current grid voltage value and delay state time. LOP indicates that the product is currently under low voltage protection and HIP indicates that the product is currently under high voltage protection. Long press "SET" key to display the remaining repair timeAdjustable Voltage Regulator: The minimum and maximum voltage capacity of the protector is adjustable. It can be adjusted when the product is powered on. Press the "SET" key to adjust the high/low voltage protection value and delay value of the product through the "+" key and "-" key according to your needs(Adjustable position is at the side)