It’s designed for testing the suger content and specific gravity of liquid. Ideal for Home Brew, Wine making, Agricultural, Gardening & Educational Purposes. Consistently accurate readings of 0-32% Brix and 1.000-1.120 Specific Gravity. Automatic Temperature Compensation makes it even easier to get fast results. Durable and Easy to Use & Carry – The main part is made of chromium, it’s light but durable.