Test Strips can eliminate interference from oxygen variations and non-glucose sugar such as maltose and galactose, providing you with the most reliable and accurate results. Each strip can be used once only. A test strip consists of the following parts: Target Area - Where a blood drop or control solution is touched. Confirmation Window - To confirm if sufficient blood drop or control solution has been applied to target area. Contact Bar - The end of the test strip is to be inserted into the test port,top side facing up. When blood is applied to this area, a chemical reaction takes place then a transient electrical current is formed. It offers 5 seconds fast test time that too with a small quantity blood sample. It helps you prevent serious complications from undetected low or high glucose levels. Applying a blood sample to the test strip to perform a test. After obtaining a blood sample, discard the first drop to prevent contamination. Introduce the tip of the test strip to the drop of blood. Blood sample will be automatically drawn into the test strip. Hold the tip of the test strip touching the blood drop until the meter beeps. As soon as the blood has completely filled the confirmation window of the test strip, the meter will start a countdown. The test result will appear on the display after 5 seconds and will be automatically stored into the meter memory. After the test result appears and if there is no further test, the meter will automatically turn off after 2 minutes. If applying a blood sample of reduced volume, the error code (E-7) will appear on the display. Storage conditions - Temp: 4°C -30°C, Do not refrigerate. Re-cap immediately. Always close cap tightly