Improved urine output collection apparatus and monitoring device features are provided. The disposable urine collection apparatus includes a collection reservoir and a diverter for controlling the flow of urine to a first passageway of the diverter in a first position and to a second passageway of the diverter in a second position, wherein the first passageway is fluidly interconnected to the collection reservoir. The disposable urine collection apparatus may include a cartridge having an internal chamber and inlet and outlet members interconnected to the cartridge, wherein the inlet member is selectively, fluidly interconnectable to the second passageway of the diverter, and wherein the outlet member is selectively, fluidly interconnectable to the collection reservoir. The monitoring device is interconnectable with the cartridge and operable to monitor a volume and/or level of urine collected within the cartridge. The cartridge may include a front portion and a reduced-width projecting portion extending rearwardly from the front portion. The projecting portion of the cartridge may be received within a recessed portion of the monitoring device. The monitoring device may include at least light source (e.g. a laser diode) for emitting a fan beam light signal into the projecting portion and a light detector array (e.g. a charge coupled device) for detection of the fan beam light signal and output of signals employable to determine a volume and/or level of collected urine.La présente invention concerne un appareil de collecte d'urine et un dispositif de surveillance du débit urinaire améliorés. L'appareil de collecte d'urine jetable comprend un réservoir de collecte et un dérivateur pour réguler le débit urinaire vers un premier passage du dérivateur dans une première position et vers un second passage du dérivateur dans une seconde position, le premier passage étant en communication fluidique avec le réservoir de collecte. L'appareil de collecte d'urine jetable peut co