We disclose an apparatus comprising: a hand-portable optical analysis unit including an optical interface; and a device configured to receive and releasably engage the hand-portable optical analysis unit. The carton includes ready assembly features, as well as at least one internal ramp structure for prompting flow of liquid toward a plurality of dispensing apertures disposed in the outer shell. These parameters are provided as input signals to a processor. The plate-form conductive member is provided on the semiconductor memory device.