DSY-207ZA/ZB is a bench-style compact instrument to determine the Vapor Pressure of gasoline, volatile crude oil, and other volatile petroleum products. The bath can place 2(ZA Model) or 3(ZB Model) vapor pressure vessels horizontally to make them 350 ° rotation. DSY-207ZA/ZB has a built-in WinCE ® based MCU to control the bath temperature and correct the vapor pressure and temperature. A large color touch screen can clearly and precisely display the bath temperature and the vapor pressure.