General introduction<br/> In the following, temperature sensors are treated which are brought into direct contact with the medium to be measured. The thermocouple assemblies (base and precious) and resistance thermometers described here are mainly used in industrial temperature measurement technology. The information is limited to the mentioned temperature sensors in the standard version and the corresponding connecting cables. If the instrumentation is included in the scope of delivery, additional information can be provided on request. The most important data of the temperature sensors, such as basic value series and tolerances, are defined in standards. RECKMANN GMBH naturally also manufactures a large number of special designs according to individual customer requirements in addition to the standard designs shown here.