We can make custom sensors out of any material that can be machined on a CNC. Yes, we have been known to make our own parts and pieces for some sensor applications. A good example is CPVC. We do not sell enough of this material for a sensor so we fabricate sensor assemblies for hot environments such as condensing units and hot water tank systems. If you do not see what you are looking for just ask and we will be glad to see if we can accommodate your needs.