The alarm methanometer, using the catalytic-type technique, has the defects of low stability, low sensibility, low antijamming ability and low resistibility against the high concentration methane.

• 甲烷检测报警仪是采用甲烷催化检测技术制成的甲烷浓度检测仪器，目前使用的甲烷检测报警仪存在响应时间长、稳定性差、灵敏度低、抗干扰能力差、抗高浓度甲烷冲击能力弱等问题。