The CareSens Control Solution, is to be used to check that the CareSens brand of meters and the corresponding strips are working together properly and that you are performing the test correctly.CareSens Control Solution is a solution containing a specific amount of glucose that is used to test meters and test strips in the CareSens brand. The CareSens Control Solution is for self-testing outside the body (in vitro diagnostic use). This solution may be used to check the performance of your meter and test strip or your testing technique. The test results you obtain should fall within the control solution range printed on the vial of test strips that you are using.