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The 841 Portable Computer Graphics Video Test Pattern Generator is compatible with VGA-enabled displays, including computer monitors, projectors, and certain high-definition TV sets.
The 841 generates 31 different test patterns of various colors, shapes, and motions. These patterns can be used to test the performance of an LCD monitor, verify a projector's color accuracy, and assess the quality of VGA cables.
Yes, the 841 is designed for portability and includes an internal rechargeable battery, making it suitable for field use.
The compact design of the 841 allows it to fit into one-third of a standard 19" rack space. This allows for the side-by-side installation of three similar-sized devices using the optional RK-3T rack adapter.
Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
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ON - green, CHARGE - blue, lights when charging, 2-character display on the front panel
5V DC, 1.4A (charge + VGA), 1.0A (charge only)
2.1Ah
1 VGA, RGBHV on a 15-pin HD connector
SVGA (800x600), XGA (1024x768), SXGA (1280x1024), UXGA (1600x1200), WXGA (1280x800), WSXGA (1680x1050), WUXGA (1920x1200), WXGA+ (1440x900), SXGA+ (1400x1050), 1920x1080, 1280x720, 1152x864, 1280x960, 1920x1200 (reduced blanking); all resolutions are 60Hz progressive
Control buttons: PATTERN +, PATTERN -, UXGA, SXGA, XGA, SVGA, SHIFT (ON), power (ON/OFF)
12cm x 7.5cm x 2.5cm (4.7" x 0.98" x 2.95")
0.3kg (0.66lbs)
After investing in the Kramer Electronics 841 Portable Computer Graphics Video Test Pattern Generator, you'll have a durable and high-quality tool for generating precise RGBHV signal patterns. This innovative device is designed for VGA-enabled displays, including computer monitors, projectors, and certain high-definition TV sets. As a part of the esteemed Kramer Electronics TOOLS line, this compact unit is designed to maximize space efficiency, requiring only a third of a single rack space in a standard 19" rack. This allows for the side-by-side installation of three similar-sized devices using the optional RK-3T rack adapter (not included).
What sets the 841 apart is its portability, thanks to an internal rechargeable battery, making it an ideal choice for field use. This user-friendly device generates patterns for any display equipped with a VGA input. With its extensive range of 31 patterns, featuring various colors, shapes, and motions, the 841 is an invaluable tool for testing the performance of an LCD monitor. It ensures each pixel illuminates with the correct amounts of light, linearity, and high-frequency response.
The 841 is not just for monitors, it can also generate patterns that help verify a projector's color accuracy, and aid in tuning the size, focus, and keystone of the picture. Additionally, it serves as a reliable tool to test VGA cables, assessing the quality of the color patterns they transmit to the screen. Any issues with displaying a specific color pattern could indicate a flaw in an individual wire of the cable.
The 841 is also beneficial for testing the black level of a plasma monitor, and its motion patterns are instrumental in testing the refresh rates of LCD and plasma displays. With the Kramer Electronics 841 Portable Computer Graphics Video Test Pattern Generator, you have a comprehensive solution for maintaining the highest quality visual displays.