An economical way to test and evaluate VGA displays/panels and easily troubleshoots any calibration issues. It has 7 different screen resolutions from SVGA to UXGA (800x600 to 1920x1080), 8 different patterns, and easy-to-use push-button control. It can be powered either by using a 9v battery that can last up to 4.5Hr or using AC power adaptor. Ideal for installer/integrator to save time and solve problems with HDTV displays. Includes AC power adaptor, 9v battery, and one (1) VGA 1.2 meter cable. (Connectors: HD15 Female)