WATLOW Mineral Insulated Sensor Thermocouple, 1/4" Outside Diameter, Single Ungrounded, Type J Calibration, Sheath Length 12", Lead Wire Length 120" Length, 20 Gauge, TFE Gland, 1/4NPT
Mineral Insulated Thermocouples Fast-Responding, Durable and Capable of Handling High Temperatures