CO gas detector 1) Detect lpg, city gas, natural gas ,co 2) AC110~240v/50hz, 60hz ... :The combined detector works flammable gas detector, detect such as lpg, city gas, natural gas etc. the core components are high ... gas sensor 8) Type of gas be detected: carbon monoxide, lpg, ng(lng), other flammable gas 9) Alarm sensitivity: co: 100 ...