KNE, KSE, KNC, KSC, KD MATERIAL: ALUMINUM APPROVED IEC529 IP65 thermocouple head ( connection head or terminal head),KNE, KSE, KNC, KSC, KD, KB, KNA, DANA, DAAD, NAA, MAA, TS, TLhead material: ALUMINUM, SS304, SS316terminal block: 2P, 3P, 4P, 6Pterminal block material: bakelite or ceramic . Thermocouple Head (Connection Head)