ELECTRICAL CONNECTOR FOR SUBSTRATE HAVING CONDUCTIVE TRACKS

An electrical connector (110) can receive a substrate (351) having conductive tracks (341-345). The connector includes a housing (120) with a port (129) and at least one alignment feature (121) that together define a direction of insertion (125). At least three function pins (131-135) mounted to the housing each include contacts (141-145) that electrically connect to one of the conductive tracks of a substrate inserted in the connector. A sense pin (139) mounted to the housing has a contact (149) that electrically connects to at least one (343) of the conductive tracks of an inserted substrate. The sense pin can include a plurality of electrically-connected segments, each segment extending substantially parallel or substantially perpendicular to the direction of insertion of the substrate. Systems and methods for detecting an analyte in a bodily-fluid sample are also described.