ST300 is designed main entrance for factory or residential community. The ST300 with stardard 1100mm wide lane is suitable for both people and motor bike. Using the DC brushless motor and mechanism, the device works fine even after crashed by bike. It is total water proof design on the cabinet, can be installed outdoor. Because of the modular design, the device is easy to install and maintain.High quality and solid stainless steel cabinet , water-proof ，acrylic swing arm.