I bought the surge suppressor - Eaton (CH) brand and will be putting it in soon.
Remember that no surge protector does protection. An effective protector connects to what does protection - single point earth ground. That protector is only as effective as its earth ground.
For example, if a quarter inch, bare copper ground wire goes up over the foundation and down to earth, then ground meets safety code and compromises protection. That wire is too long, has sharp bends, and probably is not separated from other non-grounding wires.
To have a low impedance connection means that wire must be as short as possible (ie less than 10 feet) and not have sharp bends going over a foundation. Better is to reroute an earth ground connection to go through a foundation and down to single point earth ground. To shorten the connection, eliminate sharp bends, have no splices, and not be inside metallic conduit.
Single point means surge protection provided by TV cable, satellite dish, and telephone company (installed for free) must also connect low impedance (ie less than 10 feet) to that same earth ground.
Protection is always about the 'system' component that absorbs hundreds of thousands of joules. Earth ground is why a protector is effective. A protector is only as effective as its earth ground - which a 'whole house' protector can have and a plug-in protector clearly does not.
