The EDGE Handheld Lactate Analyzer Is a Handheld Device That Measures Lactate Concentration in Blood. Athletes and coaches measure lactate as a means to accurately assess muscle capability for athletic performance. Lactate measurement in blood is far more precise than the old and inefficient method of using percentages of maximum heart rate to set training zones. Results are displayed in 45 seconds, with a level of accuracy that is comparable to those obtained from a professional training center. Kit Contains Everything Needed For Testing Lactate Meter5 Test StripsCode CardLancing Device5 LancetsMeter CheckerUser GuideWallet Control Solution Is Not Included: The control solution is available directly from the manufacturer as an optional item. It is used to test the meter itself for accuracy if you believe it to be faulty, and is not a necessary part of obtaining accurate blood test results. Step 1: Insert Test Strip Step 2: Apply Sample Step 3: Get Results The EDGE Blood Lactate Test Kit Comes With a Hardware Meter Checker which can help ensure that the electronics in the meter are working properly. This test should be done on a brand-new meter, or when the performance of the meter needs to be confirmed. For additional accuracy verification, the optional EDGE Control Solution may be purchased.