Measuring instruments help to clearly understand the exact size, scale, condition, and properties of things that we want to know but cannot ascertain. For example, they can measure the microscopic world that is beyond human perception or determine the composition of intangible substances. They capture the target accurately and instantly, presenting the information we want to confirm in an easily understandable way. This is essential for maintaining and managing quality, improving safety and economic efficiency, and conducting fair transactions. Measuring instruments play a crucial role as indispensable tools in any situation where accuracy is required. Many products have been adopted as standard measuring instruments in Japan and are useful in various fields. We consider measuring instruments to be an extension of our five senses and continue to provide reliable answers in the form of products, addressing the theme of measurement one by one.