BIAffinity® offers a technique for label-free detection of biomolecular interactions on solid phases, the so called biochips. The system’s most convincing features are it’s intuitive and simple handling, flexible sample volumes, a wide choice of functional chip surfaces, as well as a self-explanatory software for data collection and evaluation. It allows the direct and time resolved detection of binding events on specific surfaces, and enables access to thermodynamic and kinetic characterizations of affinity reactions.