Wellion GALILEO glucose test strips Wellion Glucose strips contain a biosensor and employ the enzyme glucose oxidase, specifically designed to measure blood glucose levels from 20 to 600 mg/dL. When blood contacts the test tip, capillary action draws the blood to the reaction zone. The enzyme reacts with the glucose and produces an electrical signal, which can then be measured. How to use Please read the user guide carefully. Conservation Store at a temperature between 4°C and 30°C. Shelf life in unopened packaging: 24 months. Shelf life after first opening: 6 months. Format Available in packs of 10, 25 and 50 pieces. Code WELL10-10 / WELL10-12 / WELL10-15