The paper deals with an optical sensor based on the phenomenon of surface plasmon resonance. It proposes a new geometry of the measurement head which allows for measurements with both the change of the incident light angle and the change of the wavelength. The sensors proposed can also be used in parallel configurations, where they increase the functionality of the setup, allow for a greater precision of measurement, and eliminate such distracting factors as temperature change. The article presents the results of computer analyses of the sensor proposed, as well as the results of its experimental realization.