Overview The SK5TEL-0 surge suppressor offers reliable surge and line noise protection. The compact direct plug-in design allows for easy portability and features 5 outlets and 1080 joules of surge energy absorption. Set of RJ11 telephone line suppression jacks protect dial-up and DSL modem lines, fax machines, cordless phones and more. Diagnostic LEDs alert you to potential wiring or protection faults before connected equipment is damaged. $15,000 Ultimate Lifetime Insurance (U.S., Canada, and Puerto Rico only).