Anti-Halo tag, AlpSdAbs® VHH is designed for detecting Halo tag fusion proteins specifically. Anti-Halo tag, AlpSdAbs® VHH is based on monoclonal, recombinant, single domain antibody derived from the variable regions of heavy chain of Alpaca pacous, and Anti-Halo tag, AlpSdAbs® VHH detects the Halo tag selectively, no reactivity with other proteins., High lot-to-lot consistencyIncreased sensitivity and higher affinityAnimal-free production . . . .