What is a combustible gas indicator designed to detect?

A combustible gas indicator is specifically designed to detect flammable gases or vapors in the environment. Its primary function is to identify the presence of combustible substances, which can pose significant safety risks, especially in industrial settings or environments where flammable materials are handled.

These indicators are equipped with sensors that respond to various types of gases, providing readings that help ensure safety and prevent potential explosions or fires caused by accumulated flammable vapors. This type of detection is critical for maintaining safe working conditions and adhering to safety regulations.

Other options, while they refer to different safety measures or environmental conditions, do not pertain to the function of a combustible gas indicator. For example, measuring oxygen levels is important for assessing sufficiency and safety in breathing air, but it does not account for the presence of flammable gases. Likewise, non-hazardous gases and humidity levels are unrelated to the specific detection functions performed by a combustible gas indicator.