Specific for prostate specific antigen (equimolar total PSA, epitope 6). Can be used for detection of PSA antigen, recommended pairs for detection of total PSA (coating - conjugate):5A6-2H9, 5G6 - 5A6. 1H12 - 5A6 (best pair); recommended pairs for detection of free PSA (coating - conjugate): 5A6-8A6, 8A6 - 5A6 (best pair); can also be used in lateral flow.