Thermocouples/Temperature Sensors Explore Ashcroft thermocouple sensors and thermocouple assemblies for your specific application. Ashcroft thermocouples and assemblies monitor temperature in industrial, process and hazardous installations. Available with E, J, K, N & T type thermocouples, they are designed for use with either DIN 43772/T.2 or ISA-ds 49 style thermowells along with DIN and ASME type lag extensions. A wide selection of aluminum and 316 stainless steel connection heads make these thermocouples configurable to the requirements of nearly any installation.