Optium glucose test strips allow you to quickly and accurately check blood glucose levels. No coding = one less step. Increased accuracy with fewer errors. 1 wrapped strips with foil protect from air and moisture. A small blood sample is required - 0.6 microliters. Test time 5 seconds. Reapplication time of the blood sample for 5 seconds. Fill to the top or end with visual confirmation. The filling operator ensures the test only starts when a sufficient blood sample is applied.