LACTATE PLUS brand, the Level 1 Control Solution is designed to verify the accuracy of the LACTATE PLUS lactate meter and its corresponding test strips, an important step for those who use the device regularly on multiple athletes or in frequent testing contexts. The solution has a certified lactate value in the low range, 1.0-1.6 mM, designed to verify the correct reading of the device in the lower end of the measurement scale. Periodic checks with solutions in different ranges (low and high) ensure that the system is functioning correctly across the entire range of use, not just at a single point on the scale. 4 ml vial.