A commodity consumption meter.

摘要

A commodity consumption meter in the form of a modular assembly comprising: a basic module (1) for metering the consumption of the commodity; and at least one add-on module (3,5) for providing a function ancillary to the metering of the commodity, said meter including a connection (13) consisting of a single plug (24) and socket (23) between said basic module (1) and the or an add-on module (3) by means of which the basic module (1) supplies to the add-on module (3) both power and information regarding the metering by the basic module (1). <IMAGE>