Test and calibrate your HDMI / DVI displays or A/V equipment. The HDMIPATTERN2 HDMI/DVI Portable Video Signal Generator lets you quickly test DVI-D (digital) and HDMI-capable displays, making it easier to diagnose and troubleshoot digital video calibration issues. The device can be powered by either the included AC adapter or a 9V battery, offering a conveniently portable solution for mobile installers and technicians. The video signal generator features 8 built-in video test patterns, including both HD video test patterns and standard definition patterns, allowing you to quickly analyze color performance, linearity, and HDCP issues. The HDMIPATTERN2 outputs an audio test tone to ensure your video and audio are performing optimally for HDMI throughput. Delivering a cost-effective way to test an HDMI or DVI-D display (using an HDMI to DVI cable - not included), the HDMIPATTERN2 is an ideal solution for AV install experts/integrators or digital signage installers looking to save time and solve problems with an HDTV display. Backed by a StarTech.com 2-year warranty and free lifetime technical support.