Kementec offers Horseradish Peroxidase (HRP) and Streptavidin that can be coupled to proteins, like antibodies, resulting in conjugates, used in ELISA, membrane & IHC applications, biosensors etc.

All labels are ECO-TEK which includes:

Enhanced Streptavidin-HRP
Enhanced Streptavidin-HRP is a HRP-conjugate specific for biotinylated antibodies and is characterized by an enhanced molar ratio of >5 HRP enzymes covalently coupled to a polymer backbone.