The Standard Diagnostic Code Free test strips measure the amount of glucose in the blood and display it on the glucometer screen. They contain an electrode that measures the glucose level. The glucose from the blood drop mixes with the reagent on the test strip, causing a small electric current. The amount of current produced depends on the amount of glucose in the blood. They are recommended by diabetes specialists due to their highly accurate measurement of glycemic values. They have a long shelf life. They alert in case of hypoglycemia. Test time: 5 seconds. Blood quantity: 0.9μl.