China's security industry started late, but developed very rapidly. Under the guidance of policies such as safe city and intelligent transportation construction, as well as the enhancement of people's security awareness, China's security industry has grown rapidly in recent years, showing the characteristics of large-scale and industrial cluster. Lingke Electric's specialized waterproof connectors are widely used in monitoring equipment, fire-fighting equipment, bayonet system, access control system, anti-theft alarm system, parking lot management system, forest fire prevention and other fields.