The Consilium ST400EC / 004462-S (type EC-H2S) is a high-performance electrochemical spare gas sensor head specifically designed for the accurate detection of hydrogen sulfide (H2S). Engineered for demanding industrial and marine environments, it features a robust stainless steel housing equipped with a sintered metal filter disc to protect internal components while ensuring optimal gas diffusion. This sensor utilizes an advanced 2 or 3 electrode measuring cell and connects seamlessly via a 2-wire plug connector. With top-tier explosion protection ratings (Ex db IIC T6 Gb / II 2 G / II 2 D) and KIWA certification, it ensures maximum safety in hazardous areas. It is an exact OEM replacement part designed for seamless integration with the Consilium ST400EC gas detector system.