A system and method for measuring glucose levels in a users blood without having to draw a blood sample. A wave energy source emits wave energy. A modified ceramic coaxial resonator is provided that receives the wave energy and produces a frequency oscillation. An opening is formed in a conductive layer surrounding the ceramic coaxial resonator. Skin tissue is pressed against the opening. The sample tissue alters the frequency oscillation created by the ceramic coaxial resonator. At least some of the altered frequency oscillation is indicative of blood glucose levels within the sample tissue.
