Abstract: An assembly and a method of securing elongated members within the assembly are provided. In particular, one or more particular elongated members which are adapted to contain a particular fluid may be affixed to a temperature-conducting (e.g., metallic) arrangement, and a portion of the assembly may be positioned within a container containing a sample fluid. For example, the temperature-conducting arrangement can be configured to provide the particular elongated member therethrough, and the particular fluid can be a sensor fluid. Further, the temperature-conducting arrangement is affixed to a further elongated member which is configured to provide the temperature-conducting arrangement therethrough. Moreover, the metallic arrangement may maintain a temperature of the particular fluid is provided so that it is substantially the same as a temperature of the sample fluid.