A single-sensor meter system for dispensing sensors for testing of an analyte concentration in a fluid comprises a container assembly and a single-sensor meter. The container assembly includes inner and outer cartridges. The inner cartridge includes a plurality of test sensors and a mechanical mechanism. The container assembly forms exactly one opening for dispensing the test sensors one at a time. The opening is covered by an end cap so as to assist in preventing or inhibiting moisture from entering the interior of the container assembly. The mechanical mechanism is adapted to advance the plurality of test sensors. The single-sensor meter is adapted to align with and operatively connects to the container assembly. The single-sensor meter includes a test-sensor extraction mechanism adapted to grip a test sensor and pull the test sensor through the opening to a dispensed position.