The one step HBsAg test is used for the qualitative determination of Hepatitis B surface antigen(HBsAg) in human serum or ***** test is intended for the screening of blood and blood products to be used for transfusion and an aid for the diagnosis of existing or previous hepatitis B infection.Features :safe , rapid , easy to use, competitive price1) HBsAg B11-11:a) Type: strip b) Specimen: serum/whole bloodc) Package: 1pc x 50/kitd) Specification: 3.0mm e) Sensitivity: 2ng/ml f) Specificity: >99%2) HBsAg B11-20/B11-21:a) Type: cassette b) Specimen: serum/whole bloodc) Package: 1pc x 20/kitd) Specification: 4.0mm e) Sensitivity: 2ng/ml f) Specificity: >99%