The RBC-FluoGene® ABO basic system is able to clearly distinguish the alleles ABO*A1.01, ABO*A2.01, ABO*B.01, ABO*O.01 & ABO*O.02 from each other. The RBC-FluoGeneNX ABO plus test system also detects another 35 ABO variants, in particular ABO*AW and ABO*BW alleles and impresses with a faster PCR program (54 min) and lower DNA consumption.