Thermocouple K-Type can be use up to 1200°C. It has a linear temperature raising curve, high corrosion resistance, and stable thermal EMF. In (H2, CO), when the partial pressure is low, the alloy will deteriorate, this is known as 'Green Rot' (When alloy goes under oxidization which significantly lowers thermal EMF and produce erroneous results). Passed UL VW-1 Vertical fire test and multiple IEC tests, proven to be low smoke density, halogen free, and flame retardant. Product information, specification, scope, and visual presentation