The invention relates to a sanitary outflow fitting, especially a single-lever mixer, comprising, in a manner known per se, a housing provided with at least one admission for water, and one outlet. Two attributes are used in the actual ROM to refer to a Virtual ROM module. The shuttle is adapted to receive the data storage cartridge. The support allows the reflectors to be deflected resiliently towards the base in response to passage of a vehicle tyre over the road marker. The raised portion and the overlying circuit pattern constitute the film bumps having a height not greater than the height of the circuit film.