The SC80 scanning probe is a continuous scanning probe with analog signal output, allowing connection of a stylus up to 800mm long to meet the scanning measurement needs of internal features of parts. It integrates an automatic weight balancing system inside, enabling the use of styluses within 1000g. The SC80 adopts a high-resolution and high-precision displacement detection sensor, with strong environmental adaptability, which can meet the measurement needs from metrology laboratories to workshops. The SC80 probe supports single-point measurement, self-centering measurement, and continuous high-speed precision scanning measurement of free-form surfaces and curves. During the measurement process, the three axes of the probe remain relaxed, so that the measurement is always along the normal direction of the measured point, and the stylus deformation can be compensated with high precision.