A H2S monitor is a hydrogen sulfide detector that is used to assess H2S gas in the air. It is used for personal protection in hazardous gas environments such as tanks, vessels, silos, pits, manholes, and tunnels. H2S monitors are crucial in manure pits, where H2S occurs due to the decomposition of manure in swine, pig, hog, and cattle farms. H2S monitors are often used in maritime, oil and gas, construction, mining, water, and wastewater industries. See our YouTube playlist for our H2S Monitors.