... ISO9001:2008 3. Muti-function for option Lightning Protection System for TV/Telephone/Networkt Surge ProtectorTV surge protector, telephone ... function indicatorReusable overload protection deviceApplicable ScopeMachinery House: Computer Room, Communication Room, Monitoring Room, Control Room and other low ... , Freezer, Computer, Phone, Modem etc. Lightning Protection System for TV/Telephone/Network