Hydrogen sulfide (H2S) is a hazardous gas found in industries like oil and gas, wastewater, and chemical processing. Even low concentrations of H2S can lead to health issues such as headaches and breathing difficulties, while high levels can be fatal causing coma, seizures, and death. Due to the danger it poses, it is crucial to protect workers from H2S exposure. Different industries such as oil, gas, petrochemical, wastewater management, and steel production are particularly at risk due to the presence of H2S in their operations, especially in confined and poorly ventilated spaces where the gas can accumulate. To safeguard workers, safety managers are implementing preventative measures like regular training, effective ventilation, and the use of Personal Protective Equipment. Advanced gas detection systems like MSA Safety's ALTAIR io 4 Connected Gas Detector are valuable tools for early warning of increasing H2S levels, helping to mitigate risks. The detector can identify subtle changes in H2S concentration levels at a resolution of 0.1 ppm, offering heightened protection to workers. By enabling the detection of low H2S levels starting from 0.0 ppm, the device aids industries in monitoring and complying with stringent guidelines. Early detection of H2S emissions is crucial in preventing harmful exposure to workers, even at low concentrations, and aids in maintaining operational efficiency.