A medical sensing device for sensing an analyte, the device comprising: a case having a lower major wall adapted to be mounted against the skin of the patient, and an upper opposing major wall; a sensor (12, 12A, 1012A, 12B, 1012B) extending from the case and having a distal end (15, 123A, 123B) sensitive to the analyte to produce an electrical signal, and a proximal end within the case having electrical contacts (18, 121A, 121B); a printed circuit board assembly (320, 1320) within the case supported by one of the major walls to receive the electrical signal via the electrical contacts (18, 121A, 121B); and an elastomeric pad disposed in the case and biased by the other major wall to urge the said proximal end of the sensor into contact with the printed circuit board assembly (320, 1320) and maintain an electrical connection between the electrical contacts (18, 121A, 121B) and the printed circuit board assembly (320, 1320); wherein the electrical contacts (12B, 1012B, 12A, 1012A) of the proximal end of the sensor face both towards and away from the printed circuit board assembly (320, 1320); the printed circuit board assembly has first contact pads touching the contacts (12B, 1012B) facing towards the printed circuit board assembly (320, 1320), and second contact pads displaced to the side of the sensor; the elastomeric pad is disposed to press the electrical contacts (12B, 1012B) on the sensor facing the printed circuit board assembly (320, 1320) into touching connection with first contact pads, and the elastomeric pad further contain conductive strips positioned to connect electrically the second contact pads of the printed circuit board assembly to respective electrical contacts (12A, 1012A) of the sensor facing away from the printed circuit board assembly (320, 1320). a case having a lower major wall adapted to be mounted against the skin of the patient, and an upper opposing major wall; a sensor (12, 12A, 1012A, 12B, 1012B) extending from the case and having a distal end (15, 123A, 123B) sensitive to the analyte to produce an electrical signal, and a proximal end within the case having electrical contacts (18, 121A, 121B); a printed circuit board assembly (320, 1320) within the case supported by one of the major walls to receive the electrical signal via the electrical contacts (18, 121A, 121B); and an elastomeric pad disposed in the case and biased by the other major wall to urge the said proximal end of the sensor into contact with the printed circuit board assembly (320, 1320) and maintain an electrical connection between the electrical contacts (18, 121A, 121B) and the printed circuit board assembly (320, 1320); wherein the electrical contacts (12B, 1012B, 12A, 1012A) of the proximal end of the sensor face both towards and away from the printed circuit board assembly (320, 1320); the printed circuit board assembly has first contact pads touching the contacts (12B, 1012B) facing towards the printed circuit board assembly (320, 1320), and second contact pads displaced to the side of the sensor; the elastomeric pad is disposed to press the electrical contacts (12B, 1012B) on the sensor facing the printed circuit board assembly (320, 1320) into touching connection with first contact pads, and the elastomeric pad further contain conductive strips positioned to connect electrically the second contact pads of the printed circuit board assembly to respective electrical contacts (12A, 1012A) of the sensor facing away from the printed circuit board assembly (320, 1320).