Tests for the presence of adenosine triphosphate (ATP) to verify cleaning effectiveness. Easy to use, simple to learn. Pre-moistened to aid sample collection.Provides a tool to help assess and improve hygienic performance and reduce risk. Upon activation of the test, the chemical reacts with the sample collected on the swab to produce light. The amount of the light produced is proportional to the degree of potential contamination. Measurement of the light requires the use of a 3M™ Clean-Trace™ NG Luminometer and the results are displayed in Relative Light Units (RLU). The higher the RLU number, the more contaminated the sample. Not intended for consumer use. Monitoring the effectiveness of cleaning helps reduce the risk of a food safety incident.