Wellion Galileo Glucose Strips The Wellion Glucose strips contain a bio sensor and engage the enzyme glucose oxidase, specific for the measurement of blood glucose from 20 to 600 mg / dl. When the blood comes in contact with the tip of the test, a capillary action leads the blood to the reaction zone. The enzyme reacts with glucose and produces an electrical signal; signal that can be measured. How to use Read the user guide carefully. storage Store at a temperature between 4 ? C and 30 ? C. Validity in unopened package: 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