Anti-Human IgE, AlpSdAbs VHH(HRP) is designed for detecting human IgE specifically. Anti-Human IgE, AlpSdAbs VHH(HRP) is based on monovalent, recombinant single domain antibody to human IgE coupled to HRP. Based on immunoelectrophoresis and/or ELISA, Anti-Human IgE, AlpSdAbs VHH(HRP) reacts with human IgE chain selectively, no reactivity with human IgG, IgA, IgM, IgD.