... elements (unless other wise specified) are constructed using a metallic sheath and high purity mineral oxide insulation. This ... ~12.7mm Sheath: SS304, SS321, SS316, SS310, INC600 Class: Class A or Special Core: Simplex, Duplex, TriplexSample1 MI thermocouple with J ... 2~8mm Sheath: SS304, SS321, SS316, SS310, INC600 Class: Class A or Special Core: Simplex, Duplex, TriplexSample 2 MI RTD with ...