IEC 61326-2-3:2012 specifies detailed test configurations, operational conditions and performance criteria for transducers with integrated or remote signal conditioning. It applies only to transducers characterized by their ability to transform, with the aid of an auxiliary energy source, a non-electric quantity to a process-relevant electrical signal, and to output the signal at one or more ports. It includes transducers for electrochemical and biological measured quantities. The transducers covered by this standard may be powered by a.c. or d.c. voltage and/or by battery or with internal power supply. This second edition cancels and replaces the first edition published in 2006. It constitutes a technical revision and includes the following significant technical change with respect to the previous edition: update of the document with respect to IEC 61326-1:2012.