What are the characteristics of Chinese medicine in judging health status? What are the advantages compared with western medicine examination?

Simple and economical. But there is no western medicine physical examination science. Because Chinese medicine understands the body with the subjective feelings of seeing, listening and asking, and infers the body with the theory of four diagnoses and eight classes. Because it is a personal feeling, it is easy for doctors to have differences, while western medicine is an instrument, so there is no difference between different doctors' examinations. Why do Chinese medicine hospitals also use modern western medicine instruments? If the inspection standards of traditional Chinese medicine are up to standard, why use those instruments of western medicine?