A barcode reader is an inseparable part of a cashier’s or a supermarket assistant’s everyday job. These devices differ in types of scanning elements, however, they all have the same construction - a light source, an optical sensor, and a decrypting element. There are scanners shaped like a pen. They have a sensor located right next to a light source. The detector quantifies the light received as a result of reflection. Laser scanners have the same construction but have a laser as a light source, hence the name. To identify a code, such devices should be slowly moved above the scanning surface. Another laser-based reader is known as an omnidirectional scanner, which utilizes a set of lasers to analyze the whole code at once. LED scanners have a cluster of light sensors that measure the reflected lightwaves and create an electrical signal that resembles the barcode. After the scanning, the picture is compiled, analyzed, and sent to a PC or a small display. There are detectors that use optical cameras and special picture-analyzing software to recognize the code. Software similar to this can be installed on smartphones as well.
These scanners may be pen-shaped or handheld. We offer a great variety of barcode readers from Brady, Zebra, Torbal, etc. Shop with Mega Depot and use reliable devices!