GAS DETECTING DEVICE AND SHEET THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a gas detecting device capable of being applied to a wide range of concentration from a low-concentration gas to a high-concentration gas. SOLUTION: In the gas detecting device, a discoloring gas detecting material is filled in a container. The gas detecting device comprises both a space for the passage of gasses from an opening of the container to its bottom surface, and a container shape in which a container cross-sectional area in parallel with the opening part is gradually reduced in size from the opening to the bottom surface.