A multi gas detector is a personal safety monitor that can detect multiple gases, particulates or vapors at once. They can detect explosive combustible gases (like methane and LPG) and toxic gases like carbon monoxide or hydrogen sulfide. They also measure asphyxiant gases like argon or nitrogen and can be used to detect flammable vapors or a lack of oxygen in confined spaces.

The sensors inside a multi gas detector are either electrochemical or catalytic. Electrochemical sensors have a heated metal oxide semiconductor that reacts with the target gas and generates an electric signal that can be measured by the instrument. Catalytic sensors have a platinum-coated wire that oxidizes when exposed to combustible gases, and the resulting oxidation produces heat that can be detected by the meter. A multi-gas detector measures these signals to calculate the concentration of the target gas and alarms when it reaches unsafe levels.

Choosing the Best Gas Leak Detector for Home Safety

A portable multi-gas detector is an essential piece of equipment for workers that have to enter confined spaces or work in volatile, unknown environments. Firefighters and hazmat workers often have to go into hazardous spaces without prior risk assessment, so they wear multi-gas detectors to protect them against flammable and poisonous gases. They can be used in sewage plants to assess the presence of toxins and in refineries for a wide range of chemicals.

Alternatively, a multi-gas monitor with integrated communication can connect in seconds to a G7 mobile app for 24/7 remote monitoring. It can help prevent accidents, keep teams safe and ensure compliance with regulations. It can also help reduce costly downtime and provide critical information to first responders in an emergency.