This is a voltage protector, suitable for automatic protection of home appliances in case of under-voltage, ultra-voltage and electricity stoppage. For instance, if the supply voltage is too low or too high, it may be harmful to the normal operation, reduce their service life, or even burn down the compressor motors for air-conditioner, refrigerator and freezing cabinets. Especially, instant power stoppage and restarting supply with the electricity net creates a strong voltage impact which is hazardous and may damage the compressors. It can immediately disconnect the load supply and provide the compressor with a time-restart power reconnection with a protection result for the compressor. Applications: 1. Insert the protector plug into the supply socket, and those of the air-conditioner, refrigerator, freezing cabinet into the output socket of the protector. 2. When installing this protector, one may directly hang it up on the wall by the hanging hole on its back case. Objects of Applicability: air-conditioner, refrigerator, freezing cabinet. Note: 1. Do not install this protector in positions afflicted with high temperature and moisture. 2. Using it in a dirty ambience and severe oxidation with the plug may lead the protector to early damage. Specifications: 1. 220V, 50HZ, 110V, 60HZ; 2. Voltage range: 90+/-3%~130+/-3%(60HZ); 180+/-3%~250+/-3%(60HZ); 3. Current range: 16A(Max); 4. Start-up Delay time: 180S; 5. LED, LCD display to show the working voltage and state; 6. 5 Types of protection (over voltage, under voltage, interruption, surge/spike, over load protection). Product size: 5.2*9*3.5 CM. Applications: For TV, LCD, Plasma, DVD, Home cinema, PC, Laptop, washer, Refrigerator, dryer, oven, dishwasher and other home appliance without compressor.