The range of modules for the excom I/O system has now been expanded with a resistance module and a 2-/3-sensor module. The new 4-channel TI41 resistance module is suitable for connecting Pt100, Ni100 and Cu100 temperature sensors in 2-, 3- or 4-wire technology. With 16 bits, the modules offer a high resolution of the measuring ranges. This makes it possible to implement applications in chemical and pharmaceutical environments in which measurements must be accurate to 1/10 Kelvin.