... equipmentpressure calibrator and pressure test production line.Specification:1. Led digital display, high Resolution,no visual error2. used STC SCM, ... comply with strong soft technic, it makes the gauge own high precision and stability.3. parameter correct: it ... requirement, Mpa, kg. Psi, bar.7. strong overload ability: gauge can work smoothly and keep accuracy under overload 120% situation ...