The 1729L gives a choice of up to three of the optional peripherals can be installed including: the magnetic stripe reader, vacuum fluorescent, rear-facing LED customer display, biometric fingerprint recognition device, and speaker bar with/without a built in single or omnidirectional barcode scanner. 1729L has 1280 x 1024 resolution with a 5 x 4 ratio displays clear, precise graphics, and a contrast ratio of 800: 1, together with a typical LCD panel brightness of 300 nits, provides bright, high contrast for improved readability