Countries are not mandatory for household independent type wall mounted gas alarm

Russian natural gas agreement has been reached, will be the future of natural gas is more and more families use, in order to detect gas leakage, many families to buy a domestic independent type wall mounted gas alarm. Then the state for domestic independent type wall mounted gas alarm is not related to the mandatory provisions?

In fact, countries in the fire engineering acceptance on the public and business sites, shall require the use of products with the national compulsory 3C certification, but the family installed independent type wall mounted gas alarm is completely user spontaneous behavior, the state has not the relevant provisions in this respect. Then how to select the independent type wall mounted gas alarm brand in the user?

The answer is to look at the certification. Although the national household products no mandatory requirement, but if the product is still have 3C certification course best. If not, could it have some other authentication, such as Kai Wei letter safety production technology GA502Q-D independent type wall mounted gas alarm no 3C certification, but the EU CE certification, is favored by consumers.