The S5II flexible inertial navigation RTK is a new and cutting-edge measurement RTK released by Situo in 2020. Equipped with the fourth generation inertial navigation tilt measurement technology, the "tilt angle is 60 °, with an accuracy of 2cm" is never transmitted falsely; Equipped with an industry grade OLED color touch screen, device information is still clearly visible under strong light; Equipped with a built-in global communication radio station, it can fully communicate and be compatible with the radio protocols of mainstream domestic and foreign brands RTK, allowing for longer and more free operation distances. With many advantages, the S5II flexible IMU’s RTK is specifically designed for mobile stations.