Construction scanner free POS system in recent years to bring huge benefits businesses, USB scanner easy to use you to build the system is also inseparable from the bar code scanner, a bar code and the system's input connection link, barcode scanner plays an irreplaceable role. Under the user the choice of reliable and affordable scanner price performance in the case, we must first understand how to choose scanner, scanner which classification. Here's what the scanner of classification, the most important business applications, there are three: CCD scanner, laser handheld scanner and the whole point of the laser scanner. A, CCD barcode scanner CCD barcode scanner is the use of optical coupling (CCD) principle of bar code printing pattern is imaged, and then decoded. Advantages are: no long shaft, motor, life; cheap. When choosing CCD scanner, the most important are two parameters: the depth of field because the imaging principle is similar to CCD camera, if you want to increase the depth of field, how much money a scanner, then the corresponding lens to increase, so that the CCD size is too large, inconvenient operation. Excellent CCD should not be close to the bar code can be read, and moderate size, comfortable operation. Second, the hand-held laser bar code scanner laser handheld bar code scanner is the use of laser diodes as a light source of a single line scanner, which mainly rotating mirror and chatter mirror two. Business enterprises in the choice of laser bar code scanner, the most important to note that the scanning speed and resolution, while the depth of field is not a key factor. Because when the depth increased, the resolution will be greatly reduced. Excellent hand-held laser scanner should be high scanning speed, fixed depth of field high resolution. Motorola LS6708 barcode scanner uses laser light source 650nm visible laser diode, Zhanjiang scanner with a resolution of 640x480; minimum strip width 5mil (0.127 mm), a two-dimensional vehicle designed for reading a two-dimensional bar code certificate designed with machine EMU certificate system is connected, a two-dimensional bar code reading vehicle license on eligibility. Motorola LS6708 has a proud small figure, measurements size 16.64 * 11.99 * 7.16mm weighs only 181.4g, and the use of streamlined shape, simple and stylish, very suitable for retail, healthcare, government, manufacturing and other industries to improve employee productivity, streamline business processes industry. Such design can make users for continuous operation, practical, very. Scanner generally much money, quality assurance (online consultation), Zhanjiang scanner provided by the Guangzhou City State Association Information Technology Limited. Guangzhou City State Association Information Technology Co., Ltd. (www.gzdb899.com) (www.gzdb899.com) is Guangzhou, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Guangzhou State Association leadership with the staff warmly welcome all inquiries negotiations to create the Guangzhou State Association better future.