Works and is HD-ready

Those who invest in safety, does nothing wrong. This investment is really slightly, but could help save a lot of money.
Unfortunately I can not tell you if the product works (how many). Here the flash has not yet taken, not even close (surge), I do not want to see also. The satellite system has without this protective device but an open gap. One can still secure the power grid so, but on the key skin fast times an electric shock through (despite prescribed grounding). So: use absolutely can not hurt!

The assembly is very easy. Just screw it between the coax cable directly into a wall socket or in front of the unit (which is less recommended). No Art.

Most important is the question for HD signal receiver if the protective device interferes with reception. For me this does not happen in any case, I am working with HD + and a Humax HD Fox + receiver, and on another strand with a Technisat-HD2 card in the PC. The Humax has gegrieselt short time after installation, but the effect did not occur then on again. The HDTV signal loses a percentage of its power, is in my system but strong enough.

I would highly recommend it thus.