Methane (CH4) Gas Sensor, 0-5% Vol, 0-100% Vol

Methane sensors are typically based on non-dispersive infrared (NDIR) or catalytic combustion principles. NDIR sensors determine concentration by detecting the absorption of specific infrared light by methane molecules, offering high accuracy and a long lifespan. Catalytic combustion sensors, on the other hand, rely on the temperature change caused by the combustion reaction of gas on the surface of a catalytic element to measure concentration, making them more suitable for low-cost and industrial applications. Both principles have their advantages, and users can choose the appropriate model based on their application scenario.

CH4 sensors are widely used in the petrochemical industry, natural gas transmission and distribution, coal mine safety, city gas pipeline networks, and laboratory environmental monitoring. They can detect methane concentration in the air in real time and issue warnings when the lower explosive limit (LEL) is approaching, preventing personal injury and property damage. In homes and commercial environments, sensors are also commonly used in gas alarms or smart home systems, providing users with continuous air safety assurance.

When using a methane gas sensor, ensure that the installation location is well ventilated to prevent the sensor probe from being covered by oil, dust, or moisture. Methane detection sensors typically require regular calibration to ensure accurate measurement data. In industrial scenarios, attention should also be paid to power supply stability and explosion-proof ratings to ensure the sensor meets safety regulations for the environment. Furthermore, if the ndir methane sensor is based on the catalytic combustion principle, it should be avoided from prolonged exposure to high-concentration or toxic gases to avoid shortening its lifespan.