The HDMI Cable Tester from LogiLink with the associated remote unit to test a complete line after the installation. Easy to use via LED lights and audible signals. The unit checks all pairs and shielding. Test for already installed or bulk HDMI cables With 2 HDMI A plugs Simple one button test Ergonomic portable handheld design LEDs indicate connections and faults Power: 9V battery block (not included) Optical and acoustical signals