Check the listing for details. HDMI Cable Signal Tester. Condition: New. Listed at 34.93 USD. HDMI Cable Signal Tester Capable of more comprehensive diagnostics than a simple cable checker, this HDMI signal tester ascertains the functionality of all elements in the digital signal's transmission. This HDMI signal tester connects between the source and display to verify that all components of the digital signal are being transmitted properly, thereby ensuring the best HD performance is achieved. The HDMI signal tester is designed to be connected inline with the video signal path, and can be located at either the source or display end of the system. When the HDMI cable and connectors' integrity are good, system performance is excellent. If the data is disrupted by weak or incomplete transfer, the HD experience suffers. More than just a simple cable checker, this signal tester identifies HDMI interconnection problems and helps correct them.