We are using bar code scanner when scanning is not often that not sensitive enough? Scanning speed is not fast enough? There from their own point of view this problem? Perhaps because of the difference in your scanning angle and distance affect the final results of your scan. Today I come to you to talk about how to distinguish between the scanning distance barcode scanners, because different types of barcode scanners are not the same depth of field wireless Bluetooth scanner, scanning distance that is not the same, so the depth of barcode scanners must be clearly defined. When we use the scanner bar code scanner is contact the label surface, or to maintain a certain distance outside it? In general, retail, office, and factory applications using contactless or proximity scan, warehouse, distribution and transportation applications, the typical use of remote scanning. The following types of barcode scanner depth of field are very different from each scanner, we can also see the name of 818 laser scanner, touch light pen requires contact with the label surface; working distance limit red barcode scanner 0-30cm, but the latest production of red barcode scanner has been effectively extended to the depth of 60cm; laser bar code scanner longest depth of field, between 20-100cm, some specifically designed to scan large bar of special laser gun, Depth difference a few feet can reach the depth of field by price barcode scanner can be reflected. Red laser barcode scanner and the difference between a) the red light emitted by the scanner is a very thick line (middle of thick, two thin), the farther the distance to the scanner bar code scanner, the red light is more coarse, scan success rate The lower the gun with a red bar code scanning bar codes are generally required distance is very close to sweep out. 2) emitted by the laser scanner is a very thin, very uniform laser line automatically scan gun, laser gun reading ability of a lot stronger than the red light guns, laser guns can be very far from the bar code is scanned, good performance laser scanner scanner can even scan in half a meter outside, and red light is not more than 20 cm farthest. Can be present as long as the red and laser bar code readers, it is now on the market are the laser scanner and red. Guangzhou State Association _ scanner automatically scans the gun _ provided by the Guangzhou State Association. Looking for "cash register, scanner, bar code machines, management software, small ticket machines, cash registers, shredders" fly suppliers, network operators choose to have a full alliance Certified: Guangzhou Contracting State Information Technology Co., Ltd. ( www.gzdb899.com), trustworthiness and reliability, now click on the "Business Alliance customer service" on page live chat with us now!