In terms of measurement accuracy and stability, German Rong micro-epsilon has the highest quality, but of course the price is slightly more expensive.
Japanese brand displacement sensors will use many mathematical algorithms to optimize the measurement results, that is, to put it bluntly, take the average of many measurement data, hoping to get smoother measurement results. For users who are not too demanding, it is enough to get such a result.
In addition, there are many brands in China, which are far from imported brands in performance. If the price is not considered, it is recommended to use imported brands.