【High-Precision Measurement】 This ATAGO MASTER REFRACTOMETER is a device for measuring the refractive index of liquids with high accuracy. It is particularly suitable for use in the food industry and chemical analysis, where precise measurements are required. 【Ease of Use】 It has a compact design and is easy to carry. An instruction manual is included, making it easy to operate even for first-time users. 【Reliability】 ATAGO provides high-quality measuring instruments made in Japan and is a highly reliable brand. It delivers stable performance over a long period. ★Product Description This is a used item in its current condition. There are scratches, stains, and dirt on the case due to use. Please refrain from purchasing if you are concerned about minor imperfections. The items for sale, including unused and unopened ones, have been handled by someone at least once, so they are considered used or junk items. We cannot guarantee the operation or condition of the items, so please understand. I do not have detailed product knowledge. Everything in the pictures is included. Simple disinfection has been performed. Please make your judgment based on the images, as everything is shown in the pictures. Recently, there have been cases of product swapping on Mercari, so we do not accept warranties, returns, or claims. Please understand this before purchasing. - Brand: ATAGO - Product Name: MASTER REFRACTOMETER - Model Number: MASTER-BR - Accessories: Instruction Manual - Country of Manufacture: Japan ※Used about 3 or 4 times. Thank you for viewing.