A custom RTD sensor project is easier to evaluate when the mechanical, electrical, and measurement requirements are defined before a drawing or sample is approved. The sensing element is only one part of the assembly: wiring, sheath, mounting, termination, controller input, and the intended measurement location all affect fit and system behavior. This guide gives OEM engineers and procurement teams a practical specification checklist for a platinum resistance temperature detector (RTD) project. To discuss a specific configuration, send a drawing or application inquiry. Start with the application and measurement point Describe what the sensor will measure—such as a liquid, pipe,