Thermo-Electra manufactures temperature sensors that are approved for hazardous areas, including ATEX and IECEx certifications. Both single and multipoint, and are also Dekra certified. The Atex lex 45 EX nA and lex 55 Ex EC certified thermocouple and RTD sensors are particularly useful for zone 2 and 22 ATEX zones. While ATEX zone 22 is similar to ATEX zone 2, it pertains specifically to explosive substances. The explosive atmosphere resulting from such substances is present for less than 0.1% of the operating time.