Micro analyte sensor and continuous analyte monitoring device

A micro analyte sensor, comprising:

• a substrate, including an internal part and an external part which are located on a same surface of the substrate;
• a first electrode group and a second electrode group which are located on a surface of the internal part, wherein each of the first electrode group and the second electrode group comprises at least one working electrode and at least one additional electrode,
• wherein the external part is provided with pins corresponding to the working electrode and the additional electrode, and the pins are respectively electrically connected with the working electrode and the additional electrode through wires,
• wherein the first electrode group detects an analyte at a first frequency and provides a detection signal, and the second electrode group detects the analyte at a second frequency to provide a redundant detection signal, and the first frequency is not less than the second frequency.