1.Conform to EN50291/EN50194 2.Detection gas type:Co,LPG,NG(LNG),coal gas 3.Sensitivity:CO:100+-50ppmGAS:<10%LEL 4 ... % RH·Sensor : semiconductor CO and GAS sensor·Type of gas be detected : Carbon monoxide,LPG,NG (LNG),other flammable gas·Alarm sensitivity : CO: 100 ...