Thermo-Electra designs and produces thermocouples and uses heat resistant steel and ceramic tubes for glass, metal and brick making. Stainless steel protected sensors are most commonly used in laboratories, general machinery and food industry, and vibration resistant sensors for bearing measurements and diesel engines. These units can be supplied with a certificate from Lloyds, Rina, Buro Veritas etc. Further a complete line of sensors with standard "DIN" constructions are made with an interchangeable insert, for easy replacement. Also most of our thermocouples are available in ATEX or IECEx version for Exe, Exia, Exna/Exce, Exd, Extb for zones 0, 1, 2 and 20, 21, 22.