Automtic Traffic Barrier 1, With control box and remote control 2, Arm length: Max 6m 3, Working without noise and shaking Automtic Traffic Barrier -- ... (no more than 6m)4, Safety barrier with direct boom, fold boom and fence boom for selection.5, Clutch key ... is cut off. 6, With input terminals of toll devices, loop detector for toll management Automtic traffic barrier with remote control