With the development of science and technology and the development of industrial intelligence, the sharing of data terminals and the application of handheld terminals are becoming more and more extensive, and terminal security has become a guarantee for enterprise security. As the main supplier of energy such as kerosene, gasoline and natural gas, the petrochemical industry is also in a dangerous place. The ordinary smart phones cannot meet the requirements of hazardous area operations, so professional industrial explosion-proof mobile phones are needed. Because explosive mixtures are common in the production, processing, storage and transportation of coal, petroleum, chemical, textile, grain processing and other industries, ordinary mobile phones in these places have become a very strong source of safety accidents, such as the explosion is extremely harmful. Explosion-proof mobile phones fundamentally solve the problem of fire source. Manufacturers use a variety of explosion-proof technologies, such as intrinsically safe circuits, limit the maximum surface temperature of the enclosure, and use "dust-tight" or "dust-proof" enclosures to limit dust entry. Prevents explosive mixtures from being ignited, making explosion-proof mobile phones safe to use in the above hazardous environments. With the development of technology, explosion-proof smart phones have been widely used in chemical companies, because its unique explosion-proof function has always been particularly popular. However, the safety of explosion-proof mobile phones depends not only on the security performance of mobile phones, but also closely related to the correct choice of mobile phones. What should you pay attention to when purchasing explosion-proof mobile phones? When choosing an explosion-proof mobile phone, first determine what kind of explosive substances are present in the environment, and then divide the dangerous places according to the difference of gas or dust. Such as industrial T5 intrinsic explosion-proof smart phone conquer CONQUEST S8 (explosion-proof version) shell uses V0 flame retardant material, internal use of special explosion-proof batteries to ensure the safe use of mobile phones in hazardous environments, with national certification of explosion-proof certificate and explosion-proof The logo can be applied to petroleum, coal, gas and other industries, but it cannot be applied under the mine. In addition, be sure to pay more attention to the anti-counterfeiting mark and the explosion-proof certificate when purchasing. When purchasing a new explosion-proof mobile phone, make sure that the content of the explosion-proof mark is consistent with the requirements, the model of the explosion-proof battery (removable battery) and the battery type on the body label. Whether it is consistent, whether the interface seals are damaged or not, and whether the interface can be effectively sealed.