Differences Between Carbon Monoxide Gas Detectors and Flammable Gas Detectors
Carbon monoxide detectors differ significantly from flammable gas detectors, yet many distributors and end users often confuse the two. In fact, their functional gaps are substantial. Improper installation - fitting a flammable gas detector in an environment requiring carbon monoxide monitoring, or vice versa - can cause severe losses to personal safety and property.
A carbon monoxide detector is designed exclusively to measure carbon monoxide (CO) and cannot detect alkane gases such as methane (CH₄).
Commercially available flammable gas detectors are generally intended for natural gas, liquefied petroleum gas (LPG) or coal gas, the three common types supplied through urban pipeline networks. Their main components are alkane gases represented by methane (CH₄), which have a pungent odor. Once their airborne concentration exceeds the safety threshold, explosion hazards will occur. Flammable gas detectors are engineered to monitor these explosive alkane compounds and are incapable of sensing carbon monoxide.
Urban pipeline coal gas is a special medium containing both CO and alkane components. For simple leakage inspection of pipeline coal gas, either a carbon monoxide detector or a flammable gas detector is acceptable. However, if the objective is to test whether excessive carbon monoxide is generated during the combustion of piped natural gas, LPG or coal gas, a carbon monoxide detector must be deployed. In addition, coal stoves for heating produce carbon monoxide (CO) instead of methane and other alkanes. A carbon monoxide detector, rather than a flammable gas detector, is therefore the correct choice here. Installing a flammable gas detector near coal-burning heating equipment offers zero protection: it will not trigger an alarm even when occupants suffer CO poisoning, which poses an extremely dangerous hidden risk.
In short: If you need to monitor toxic gases and guard against poisoning risks, select Hunan Guorui portable or fixed carbon monoxide detectors. If you aim to detect explosive gases and check pipeline leakage, Hunan Guorui portable or fixed flammable gas detectors are the appropriate solution.
Hunan Guorui flammable gas detectors adopt the catalytic combustion principle to quantify the concentration of various combustible gases. Equipped with infrared remote control and audible-visual alarm functions, they are widely applied in petrochemical, metallurgy, mining, fire protection, gas supply, electric power and communication, urban water supply, wastewater treatment, scientific research, education and national defense industries.






