INTENDED USE: The Control Solution is a desired aqueous glucose solution with small amounts of non-reactive ingredients and food coloring for verifying the accuracy of the entire Blood Glucose Monitoring System. The Control Solution test examines the performance of the Glucose Meter, Test Strip, and your operating techniques.
User manual link:
http://mhcmed.com/wp-content/uploads/2014/04/ET_Control_Solution_Insert.pdf