9 Instruments for measuring purposes, namely, apparatus for wireless transmission of measurement data, measuring apparatus and auxiliary measuring apparatus for ascertaining an allocation of power costs such as heat costs, hot water costs, heating costs and associated incidental costs, or a telecommunications cost; water meters; water quantity measuring and display apparatus; steam meters and parts of the aforementioned goods; signaling, monitoring, display, control and regulation apparatus for temperature, power, quantity, volume and flow; computer programs for operation, servicing and readout of the aforementioned apparatus and for writing accounting programs, computer programs for financial services