In this paper, the improvement of the visualization method of the electromagnetic field distribution using a simple meter is described. Visualization is important to correctly understand the biological effects from electromagnetic fields. In this study, it is possible to measure more easily by using a simple meter instead of the conventional high-performance meter. In addition, a method has been proposed in which the measurement position, which used to be an IR marker or depth sensor until now, can be measured more easily by using object detection by machine-learning. Furthermore, user-friendly measurement is possible by correcting the deviation due to the scanning angle of the magnetic field sensor using machine-learning.