VGA SIGNAL TESTING DEVICE This professional display signal generator is designed for testing and diagnosing multiple VGA resolutions including 640x480, 800x600, 1024x768, and 1280x1024 at 60 Hz. Connect to any monitor or projector via the standard 15pin Dtype connector to quickly determine display issues and distinguish between monitor or host faults. MULTIRESOLUTION SUPPORT The compact XGA display tester supports four common VGA resolution modes with onebutton selection. Easily switch between different resolutions to thoroughly test CRT monitors, LCD screens, projectors and displays. The generator outputs standard RGBHV signals compatible with most display devices for comprehensive diagnostics. VERSATILE TEST PATTERNS Generate ten different test patterns including Square, Bar, Red, Green, Blue, White, Gray, Black, Flash, and Table patterns with simple button presses. These varied signals allow for thorough evaluation of display quality, color accuracy, and pixel functionality, making it an essential tool for electronics professionals. PORTABLE DESIGN WITH DUAL POWER OPTIONS The signal generator features a compact size of 26mm * 52mm * 90mm and lightweight ABS construction, allowing for easy transport to job sites. Powered by either a standard 9V battery (not included) or via USB cable (included), this tool offers flexibility for bench testing or field diagnostics without requiring wall outlets. PRACTICAL USE SCENARIOS Onsite projector and monitor checks in conference rooms, classrooms, or training venues to verify compatibility and quickly identify whether issues are caused by the monitor or the host. In the electronics lab, use the test patterns to evaluate color accuracy, pixel function, and overall display quality on CRTs, LCDs, and projectors. For deployments or field service, perform rapid display diagnostics before installation to ensure displays meet performance requirements.