Explosion-protected gas sensor without explosion-proof enclosure

摘要

Gas sensor for use in continuously or long-term of existing dangerous explosive atmosphere, wherein the gas sensor without explosion-proof enclosure and is equipped with at least one catalytic or a semiconductor - measuring element (3) in a the measuring element (3) to the environment that separate hollow body (6) with breathing openings (4) is provided, and wherein further the ratio of the area of the breathing openings (4) to the total surface area of the hollow body (6) is a maximum of 0,8.