RLU stands for Relative Light Units and is the unit of measure used in the NEMIS luminometer. RLU values are proportional to the amount of AquaSpark™ light emission induced by the specific enzyme. For each NEMIS test, a certain threshold for presumptive positive and presumptive negative results has been defined. In the case of the N-Light™ L.monocytogenes test, a sample is considered presumptive positive when the signal is above 20’000 RLU.
