Barcode reader is a very practical device that is mostly used in warehouses and stores. This device scans the desired barcode with the help of a sensor embedded in it. These barcode readers are available in different types and qualities. The technology used in these devices is in two forms. Optical technology and laser technology are types of barcode scanners. The optical type takes a picture of the barcode and sends it to the CPU. But in the second type, a laser is shone on the barcode and its reflection is processed. These two models each have their own unique features. You can get this device in different types at the best price.