About this item PROFESSIONAL SURGE PROTECTION: This device can save your time and money by protecting your refrigerator and other appliances from high and low voltage, spike, instant surge, power failure, voltage fluctuation, brownout and load shedding, prolong the lifespan of your refrigerator. Saving you a ton of repair costs NEW UPGRADE: New functions to real-time detect and display voltage, current, and accumulated power etc. Protection status is clear at a glanced. Using your appliances more at ease. Added byp function, the device can be manually turned on regardless of the detection voltage. Indicators for normal, high voltage(135VAC), low voltage(90VAC) and time delay DOUBLE OUTLETS: One surge protector can protect two appliances at the same time, besides the refrigerator, you can also plug in your other appliances such as rowave, water cooler, dishwasher etc., saving your procurement cost DELAY FUNCTION: After the voltage fluctuates, once the power returns to normal, there is a 3 minute time delay to confirm that the voltage is stable and can be auto reconnected. This ensures that the appliance will not switched on-off repeatedly during fluctuations, nor will it be affected by a mive surge when power returns after a blackout SUPER EASY TO USE: Plug-and-play design. The installation is extremely flexible. After plugging in, it does not occupy the space nor affect the use of other sockets. Ideal for fridges, domestic freezers up to 27 cu. ft