Reliable Appliance Protection Effectively protects home appliances from all types of power anomalies. Suitable for refrigerators, air conditioners, washing machines, freezers, TVs, computers, and more. Professional Surge Protection Equipped with 140J surge energy absorption to effectively protect refrigerators and other appliances from high/low voltage, power outages, voltage spikes, surges, overload, fluctuations, and electrical faults, extending the lifespan of your home appliances. Customizable Protection Settings Supports adjustable high/low voltage protection values and delay time. While powered on, press the SET button and use the +/- keys to set the high voltage range (130150VAC), low voltage range (80100VAC), and delay time (180999s) for flexible and precise protection. Clear LED Digital Display Upgraded LED screen shows real-time voltage and delay. LOP indicates under-voltage protection, HIP indicates over-voltage protection, making appliance status c