Support  >  Glucose Meter

How to use control solution

Control solution can be used to confirm that your meter and strips are working correctly. You can purchase control solution for your One Drop meter in our online store. One Drop control solution comes in both Level 2 and Level 4. You may receive one or the other depending on which one is in stock at our fulfillment centers. Either one will give you an accurate measurement.

If you are enrolled in One Drop through your employer, please email with your name, email, and employer name to request control solution.

Can I use other control solutions?

The One Drop glucose meter must be tested with Agamatrix control solution. Control solutions from other manufacturers may not produce an accurate test result.

How to use One Drop control solution:

  1. Determine if you have Level 2 or Level 4 control solution. The level is listed on the box.

  2. Find the reading range that matches your control solution level. The range is listed on your One Drop test strip vial.

  3. Use the control solution to take a glucose reading as you normally would, substituting a drop of control solution for the drop of blood.

  4. Check the reading on your glucose meter produced by using the control solution. If the number is within the corresponding range listed on the bottle of test strips, your meter is functioning correctly. If the reading is out of range, please email immediately for a replacement.

What is the difference between Level 2 and Level 4 control solution?

Level 2 and Level 4 control solutions have different concentrations of glucose, allowing you to check for meter accuracy at normal and high glucose levels. You do not need to use both Level 2 and Level 4 control solutions to verify that your test strips are working and your glucose meter is accurate.

Level 2 is considered the standard level of control solution and can be used for everyday testing to confirm that your meter and test strips are working together correctly.

Level 4 is used in clinical and professional settings that require a secondary quality control level in addition to Level 2.


Need more support? Call 1-800-437-1474 or email Support hours are 9:30 a.m. to 5:30 p.m. ET Monday through Friday.

Updated: January 15, 2021