Control Solution should be used at least once a week or whenever you suspect the meter or test strips may not be functioning properly and every time a new vial of test strips is opened. Use of control solution is also recommended for teaching or learning your LifeScan System. ONE TOUCH Ultra Control Solution For use only with ONE TOUCH Ultra Blue Test Strips.
Includes: 1 vial of Control Solution Compatible with OneTouch Ultra Blue Systems (enough solution for 75 tests)