It is very rare for a meter to be out of calibration. Control solutions are a way to test your meter so you know that it is giving you accurate results. FORA® GDH control solutions contain a known amount of glucose at points relevant to normal, low or upper limits of the clinical range that can react with FORA® GDH test strips.
712-4908102-021 Blood Glucose Control Solution, Normal Level, 4 mL, Vial ; ForaCare Inc ; FORA ; 7124908102021 ; Glucose Meter Control Solutions ; 712-4908102-021 ; 16042001200