Perfectly designed for on-site maintenance personnel,support the multimeter with 9V battery and USB power supply, light volume, convenient to carry. 15 different parameters and different resolution VGA signals, suitable for all kinds of different performance monitor. It is a Simple and VGA/XGA color generator. -A unique, practical product for testing and adjusting VGA/SVGA/XGA display devices such as monitors, projectors, etc. In the four most common VGA resolution modes - 640x480, 800x600, 1024x768 and HV8-1,HV8-2,HV8-4 and HV8-8 Specifications: Voltage:9V DC or USB Power (Not include) Output: Standard VGA/XGA RGBHV signal on an HD15F connector(15 pin D connector) Resolutions: 640 x 480, 60 Hz 75Hz. 800 x 600, 75 Hz. 1024 x 768,75 Hz. : PC+Metal colour: As shown Package Contents: 1 x VGA Signal Generator LCD Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.