55-inch outdoor advertising machine at Chengdu high-speed toll station

55-inch outdoor advertising machine at Chengdu high-speed toll station尺寸55英寸显示面积1209*680mm显示比例16：9分辨率1920*1080亮度2000cd/㎡对比度4000：1可视角度178°水平/178°垂直处理器瑞芯微RK3188 四核内存1GB存储标配8G 可扩展至32G接口USB*4 RJ45*1防护等

• Model： 55-inch outdoor advertising machine at Chengdu high-speed toll station