Landfills produce methane gas as a result of the natural anaerobic decomposition of organic refuse, providing a safe and cost-effective disposal option for community waste. So as to manage safety operation and protect the environment, it's very important to monitor it's main content in real time includes CH4, CO2, O2, H2S. Hubei Cubic-Ruiyi Instrument can provide you total solution for landfill gas measuring like Bio gas analyzer, ultrasonic gas flow meter, gas detector and so on, with features as below: •Support up to 6 gases measuring includes CH4, CO2, O2, H2S, CO, H2, even gas flow rate •Self-developed air purge on H2S sensor to ensure it's longer lifetime. •Complete sampling and conditioning device. •Modular design realizes simple maintenance • Robust design, high accuracy, customized measure range Handheld Type Rack Type TT Continuously Monitoring System