COMPLETE SIGNAL GENERATOR SET: This portable signal generator includes a USB cable and is designed to work with HDTVs, LCD monitors, and CRT projectors, making it an essential tool for troubleshooting display issues. FOUR RESOLUTION MODES: Switch between 640x480, 800x600, 1024x768, and 1280x1024. Each mode is powered by a 9V battery or an external AC adapter for flexible use. USERFRIENDLY OPERATION: Connect the generator to your display using the 15pin connector and select your desired signal effortlessly. The default color block diagram appears at startup for immediate testing. COMPACT AND LIGHTWEIGHT DESIGN: Dimensions are 26 mm x 52 mm x 90 mm, making it easy to transport and store for technicians or home users needing quick diagnostics. POWER AND COMPATIBILITY: Includes a USB cable and supports multiple display devices with straightforward setup and operation. PRACTICAL USE SCENARIOS: Field service: diagnose projector or display issues onsite in conference rooms. Office or classroom installation: verify HDTVs, LCDs, or monitors for compatibility and correct resolution output. Home theater setup: quickly test display compatibility across common resolutions to ensure proper presentation.