Reduced tip measuring Junctions for fast speed of response. Rugged MgO insulated sheaths are fully annealed & can withstand the harsh conditions found in gas turbines. All stainless sheaths & fittings. TTEC’s Gas Turbine Exhaust Thermocouples provide long life in hostile environments & greatly reduce costs associated with downtime due to sensor failure.. These sensors provide reliable inputs to exhaust control systems that monitor turbine performance and provide for automatic turbine shutdown. Available in Types J or K. Supplied with ungrounded (electrically isolated) Measuring Junctions.