(Recommended) Guangzhou State Association scanner _ Wholesale _ radium code scanner scanner provided by the Guangzhou State Association. We are Guangzhou City State Association Information Technology Co., Ltd. (www.gzdb899.com) located: Guangzhou specializes in: cash register, scanner, bar code machines, management software, small ticket machines, cash registers, shredders serial barcode scanning In fact, guns and keyboard barcode scanner, its advantages and disadvantages who is a: external power supply. Why use a serial barcode scanner? External power supply in appearance a bit ugly, but must Cadogan a power connector, but precisely because of this barcode scanner price, it does not use the computer's power radium code scanner wholesale, voltage is guaranteed. Some bar code scanner for voltage requirements are relatively high, keyboard port connected barcode scanner after this load, the voltage on the low down, is not working. And serial port can take a variety of host devices: PC, cash registers, terminals, barcode scanner keyboard port in the application scope is not as good as it. Let's make a comparison, in fact, should choose serial or keyboard port according to their own needs. Compare the contents of the serial keyboard port USB port power supply external, such as organic within the power supply can also be modified, such as PC, POS machines are also available from the PS / 2 fetch electricity (expert level in order to do so) keyboard port to take power, no external power supply USB port What makes a good supermarket scanner, no external RS232 standard length by 200 feet (60 meters), the actual but also longer 1.5 to 5 m USB specification 1.5 to 3 meters Applications PC, POS, industrial machines, terminals, data Terminal PC, part of the POS machines, part of the terminal PC, Mac driver Scanpard, WinCom2key, com2key need to be supported by Windows, Windows built-speed input speed is not tested with the other two over the New World nls hr1030 handheld scanner compact design, high-quality handheld applicable one-dimensional code scanner can be widely used in the retail, office automation and other fields. Up to 300 times / sec scan speed and more than 30 cm of reading distance, making it the choice for hand-held bar code scanning applications. Nice product scanner, feel good, and to adapt to Asian and European people's habits. Take seismic drop resistance protection design. New World nls hr1030 (once model named nls-hr100) is mainly used for hand-held scanner to scan one-dimensional codes, which can meet the needs of the vast majority of barcode scanning. The scanner, using their own core technology uIMG. Entirely manufactured by the company independent design. uIMG contain optical systems, optical coupling system, digitizer, decoder, image processing, embedded systems and a series of integrated technologies. Can read common international standard one-dimensional bar code reading performance reached the international advanced level. Supporting a variety of bar code applications can be provided by the company, read user-defined.