The Luxi Electronics HDMI Troubleshooter Kit has everything you need to be picture perfect. One of the most common and puzzling symptoms of any HDMI based system is that the display has a flashing or snowy picture or no picture at all, even if the system is well designed and installed and each component was tested thoroughly. Usually this means the system doesn't have enough bandwidth or the cable is too long for the signal data rate. Another possibility is that the DDC (hand shaking or copyright) communication has broken down. The Luxi HDMI Troubleshooter Kit helps you solve ALL of those issues. You get the Luxi HHT-200 , a two piece (Tx and Rx) handheld HDMI Continuity Tester that can check long cable runs, even those spanning 2 rooms. You can test all 19 conductors with all the wire functions clearly marked. The Luxi CHD-110 is an HDMI communicator that fixes most of the EDID handshake and HDCP copyright related problems in a female to male pigtail that doesn't need mounting. Rounding out the kit is the Luxi EHD-111 a slick HDMI Extender in female to male pigtail form factor that amplifies and reshapes HDMI signals at the display end to greatly extend the max usable cable length. The Luxi Electronics HDMI Troubleshooter Kit, put one in your toolbag now, before you wish you did!