A diversified glucose sensor system comprises an introducer needle and two or more independent sensor bodies, each sensor body having one or more sensing elements that can be subcutaneously positioned in a patient's body by insertion of the introducer needle for glucose measurement. The system further includes a progressive insertion device comprising an insertion shaft that pushes the sensor bodies out the end opening of the introducer needle to a desired depth in the patient prior to removal of the insertion shaft and the introducer needle. The sensor bodies are bent or folded and held under stress within the introducer needle for insertion, and released and biased outwardly when pushed out of the introducer needle. The sensing elements are anchored and disposed within the patient at positions providing X/Y/Z-axis diversity for measurement.