XYX brand K type industrial thermocouples: 1.K, 0~1000C, +/-2.5C 2.superior ... . Thermocouple can measure 1800 .C surface temperature to various medium of liquid, vapor and gas.Type , Temperature Range and ToleranceB, 0~1800C , +/-1 ... : by air , in 15 days after receiving the payment K type industrial thermocouples for furnace