Small volume in vitro analyte sensor

The small detector and manufacturing method, which is connected with coulometric analysis, the amperometry and a voltage analysis technology detecting to the analyte concentration or blood serum to the glucose or the lactate in biological liquid. Detector comprises a working electrode and a counter-electrode, and a comprises a detecting detector of the plug and position of the inserting monitoring circuit mark. In one embodiment, the detector, and the discharging capacitor and timing quantity by the amount of charge to the time for sample, discharge detection requires to position detecting to be used in one part analyte the current, measuring analyte concentration.