This potassium carbonate refractometer is a waterproof device and determines the percentage of potassium carbonate in the water with a measurement range of 0 to 51 %. You can visualize the measurement value and temperature of the sample on the LCD screen. The potassium carbonate refractometer can measure different parameters, such as potassium carbonate content and refractive index, quickly and accurately with only four or five drops of the sample.