yes. According to the newly revised Law of the People's Republic of China on Work Safety, the catering industry must install combustible gas alarm devices to prevent gas leakage. Otherwise, a maximum fine of 211,111 yuan can be imposed. Specific punishment standards include the punishment of ordering to make corrections within a time limit, failing to make corrections within the time limit, and a fine of not less than 11,111 yuan but not more than 21,111 yuan for the directly responsible person in charge and other directly responsible personnel. If the circumstances are serious, they will face suspension of production, rectification and even criminal responsibility. Therefore, whether shops should install carbon monoxide alarms needs to be decided according to the actual situation and legal provisions.