Codabar

Codabar is a numeric barcode with six additional special characters. The following characters can be represented with this code: 0 1 2 3 4 5 6 7 8 9 - $ : / . + Each character consists of seven modules (bars and spaces (space)). Either two or three wide elements and four or five narrow elements are used for the code. The spaces between the bars do not contain any information. Codabar has a low information density.