The 1101-12 is a ThermoSentry protection tube with a refractory surface that resists erosion by molten aluminum up to 1400F, manufactured by E-JAY THERMO. This protection tube is designed to provide superior protection and durability in high-temperature environments. With its hermetically sealed stainless steel Type K thermocouple, it ensures accurate temperature measurements. Ideal for aluminum industry applications, this ThermoSentry protection tube offers reliable performance and long-lasting durability.