The S2 XPress Densitometer is an ideal solution for two-color presses engaged in process color work. It accurately measures the two critical variables: solid density and dot gain. With a design that requires no recharging, it operates on just two standard “AA” batteries, providing years of dependable service-24/7, 365 days a year. Utilizing LED technology, the S2 XPress minimizes the need for frequent calibration or recalibration. Additionally, it features a unique RED/GREEN “Traffic Light” system, similar to that in the S4 XPress model, allowing operators to easily gauge whether they are achieving the correct density and dot gain. This combination of reliability and user-friendly features makes the S2 XPress an essential tool for any print shop focused on quality. The Unit is used and does have a bit of wear. It does power on without issue. Digital screen is working well and buttons respond allowing the user to scroll through settings and options. It takes readings and processes information. Manua isl included, along with case, and what is seen in pictures. If you have any questions, or need some specific test to make a more informed decision feel free to ask. Auto Zero, Relative Density / Absolute Density. Two Dot Gain Target Values. Check digital proofs and digital prints, large-format output and labels, offset, flexo, gravure, and screen process easily and accurately.