Read product information for the Belkin SurgeMaster (F5C204u4-TEL ,F2A046-06-GLD) Surge Suppressor 

If a person's water is dirty, it is simple to spot. Dirty electricity, however, is much more difficult to detect and has the potential to do more damage. Power surges, brownouts, and electric spikes have the capacity to wipe out data and equipment.??Belkin Components develops state of the art power protection products that are second to none. Thousands of hours of development and over ten years of experience have resulted in the ultimate in surge protection.