A urine meter (10), comprising: a housing (12) having an inlet port (32) and an upper wall (30), a lower wall, side walls and a rear wall (42) defining at least a fluid receptacle (16)； and a substantially transparent faceplate (14) enclosing the housing (12), the faceplate (14) having marks (50) formed therein, to identify the volume of fluid contained within the at least one fluid receptacle； where the inlet port (32) defines an opening that extends through a central part (30a) of the upper wall (30), where the housing (12) defines at least one drain opening (40) located above of the at least one fluid receptacle (16), the at least one drain opening (40) being positioned adjacent to at least one of the ends of the upper wall (30), where the at least one drain opening (40) it includes a first drain opening (40b) positioned adjacent to the first end of the upper wall (30b) and a second drain opening (40a) positioned adjacent to the second end of the upper wall (30c), characterized in that the housing (12) It also defines at least one stepped part (26) positioned below the first and second drain openings (40) adjacent to the marks (50) of the faceplate, where the at least one stepped part (26) reduces the volume of the at least one fluid receptacle (16), to facilitate a more accurate measurement of smaller fluid volumes, within the at least one fluid receptacle (16).Un medidor (10) de orina, que comprende: un alojamiento (12) que tiene un puerto (32) de entrada y una pared superior (30), una pared inferior, paredes laterales y una pared posterior (42) que define al menos un receptáculo (16) de fluido； y una placa frontal (14) sustancialmente transparente que encierra el alojamiento (12), teniendo la placa frontal (14) unas marcas (50) formadas en ella, para identificar el volumen de fluido contenido dentro del al menos un receptáculo de fluido； donde el puerto (32) de entrada define una abertura que se extiende a través de una parte central (30a) de la pared superior
