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The Erma Hand Refractometer is a compact and lightweight handheld device designed for industrial use. With a weight of only 175g and dimensions of 27 x 40 x 150mm, this refractometer is easy to handle and carry around. The device is made of durable metal material and comes in a sleek black color. This device is perfect for measuring the refractive index of liquids such as oils, chemicals, and beverages. The Erma Hand Refractometer provides accurate and reliable measurement results, making it an essential tool for industrial applications.