Where thermocouples are used for temperature measurement and / or control, where the portability of measurement equipment is important, B+B Thermo-Technik Thermocouple Connectors are used. Possible measurement errors due to fluctuations in the ambient temperature are avoided, since all contacts are made of the corresponding thermocouple alloys. Thus no new thermo-electric forces arise at the contacts between thermocouple, extension cable and measurement device, which can distort the measuring values. The thermocouple connectors are polarity-reversal safe and may be used - depending on the execution of the housing- up to +900°C. The contact pins are made exclusively out of solid thermocuples alloys, which insures also a high mechanical stability.