Uses 1 standard 9-volt alkaline battery. Includes: padded carrying case. One year warranty. The Triplett Wire Master HDMI High Definition Cable Tester is an advanced tester utilizing X-TEST technology. It outperforms similar products, identifying faults that other testers miss. It employs both Autoscanning for quick testing of all of the wires, and Manual testing for more rigorous testing on individual wires. It works with all types of HDMI cables with Type A connectors on their ends. It will test short patch cables or long installed cables. Consisting of a Transmitter and a Receiver, the cable is easily tested by connecting to the ends of the cable and observing the LED displays. A built in battery test informs the user when the 9 volt battery needs to be replaced. Unlike other cables common in the work or household environment (coax, telephone, security, LAN, etc), HDMI cables are very fragile and can be damaged by pulling on them too hard, pulling them around corners, bending them too sharply, or just rough handling. To meet the requirements of the High Definition Multimedia Interface, some of the wires inside of the cable are very 3 small and easy to damage. Care must be taken during installation to guarantee maximum performance of the cables. The WireMaster HDMI aids the installer by verifying that the cables are good, both before and after the installation. Specification: Cables Tested: HDMI cables with Type A connectors, conforming to 1.0, 1.1, 1.2, 1.2a, 1.3,1.3a, Category 1 and Category 2 cables. Tests Performed: Tests for Opens, Shorts, Miswires. Test Modes: Auto or Manual. Displays:- Transmitter: 9 Red LEDs indicate test performed, Receiver: 9 Green LEDs indicate test results. Battery: Standard 9v Alkaline Battery, ANSI 1604A, IEC 6LR61 Size (approx): Transmitter: 2.8" x 4.8" x 1.1", Receiver: 2.3" x 1.2" x 1.1", Combined: 2.8" x 5.9" x 1.1". Weight (approx): Transmitter: 0.305 lb, Receiver: 0.050 lb, Combined: 0.355 lb.