Dong Yang Security Co., Ltd. has been specializing in the manufithre and expect of automobile alarm / car security and gas leak detector system.Since is establishment in 1994 to now.We expect security system for car alarm and gas detector all over the world N.A., Europe, La A, Asian and so on with our own unipue thede bland name "Golden bat"and OEM/ODM.We are doing our best effects to become glory competitive to be able to compete with advanced foreign compenise by developing world class products.So we develope new model holding a patect remote control devices every 4 months.