Barcode Reader Selection Points [Price]

The price of a code reader largely depends on the four points introduced here.

Supported cell size / narrow bar width

The smaller the cell size of the QR code or DataMatrix code, or the more narrow the narrow bar width, the harder a code is to read. The increased number of components subject to traceability has resulted in a greater need for reading extremely small codes on increasingly smaller components.

Supported cell size / narrow bar width vs. price
High Low Large Small Price Supported cell size / narrow bar width

Ability to handle difficult-to-read codes

Codes marked directly on components made of resin, metal, and other materials (referred to as DPM, or direct part marking) are often characterized by a low black and white contrast, and are easily affected by glare due to the reflectance of the material itself. This makes the codes more difficult to read. This means that users must select the best code reader and reading settings for their specific conditions. The graph below shows how the price of a code reader is affected by its ability to handle difficult-to-read codes, which vary by marking method and complexity.

Ability to handle difficult-to-read codes vs. code reader price
High Low Low High Code reader price Ability to handle difficult-to-read codes A: Codes on paper, labels, etc B: Codes on metal, resin, etc

Reading field of view

Code readers with a wide reading field of view can ensure greater operational efficiency. For example, the ability to read multiple codes at once and to omit setup changes (such as positioning) for each product type can significantly improve productivity.

Reading field of view vs. price
High Low Narrow Wide Price Reading field of view

Reading distance/depth

A code reader capable of reading data over long distances ensures a greater degree of freedom when designing new equipment or retrofitting existing equipment by offering greater flexibility in terms of installation conditions. In addition, a code reader with an increased reading depth can handle various product types even if the reading distance changes, such as in production lines with multiple product types.

Reading distance/depth vs. price
High Low Short/shallow Long/deep Price Reading distance/depth