3C certification
The full name of 3C certification is "Compulsory Product Certification System", with the English name China Compulsory Certification and the English abbreviation CCC. It is a product qualification assessment system implemented by the Chinese government in accordance with laws and regulations to protect the personal and national safety of consumers, strengthen product quality management, and implement it.

The 3C logo is usually affixed to the surface of the product or molded onto it. Upon closer inspection, multiple oval shaped "CCC" symbols can be found. There is a random code after each 3C logo, and each random code has a corresponding manufacturer and product. The Certification Mark Distribution Management Center has entered the corresponding product code into the computer database when issuing mandatory product certification marks, and consumers can query the code through the National Quality Certification Center.

It should be noted that the 3C mark is not a quality mark, but rather a basic safety certification. That is to say, this is a mandatory certification by the country, and without this certification, it is not allowed to be listed for sale.

Explosion proof certification is used to determine whether gas detectors meet the requirements of explosion-proof standards, type tests, and routine tests. If they meet the requirements, corresponding explosion-proof certification certificates will be issued. When applying for an explosion-proof certificate for a gas detector, it is necessary to provide important information such as enterprise qualification certificate, enterprise quality assurance certificate, technical data, and the sample submitted for applying for an explosion-proof certificate. Therefore, when choosing a gas detector, we should pay attention to checking whether there is an explosion-proof certificate.