The Extech RF11 is a compact and portable refractometer designed for accurate and convenient measurement of the refractive index of liquids. This handheld instrument combines precision, simplicity, and essential features to provide reliable refractometry capabilities for professionals in industries such as food and beverage, agriculture, and automotive.

The Extech RF11 utilizes the principle of light refraction to determine the refractive index of a liquid sample. It typically features a built-in measurement scale or digital display that allows users to read the refractive index directly. This measurement is useful for determining the concentration or quality of solutions, such as sugar content in beverages, coolant concentration in automotive applications, and moisture content in agricultural products.

The refractometer is designed for ease of use, with a straightforward operation that involves placing a small sample of the liquid onto the measurement prism or window. The instrument then measures the refractive index by analyzing the light passing through the sample.

The Extech RF11 is typically compact and lightweight, making it portable and suitable for on-the-go measurements in different locations. It is battery-powered, allowing for convenience and flexibility in various testing environments.

The Extech RF11 is suitable for a wide range of applications, including food and beverage quality control, agricultural testing, coolant analysis, and research and development. It is particularly useful for professionals who require quick and accurate refractometric measurements for quality assessment, process control, and formulation purposes.