A boom barrier also known as a boom gate is a bar or pole pivoted to allow the boom to block vehicular access through a controlled point. Device comes with 24VDC drive unit which can run continuously without generating heat. Features of the boom barrier include an inbuilt anti-crush safety device which suspends the motion of the boom should it meet any obstruction. Optional beam sensor provides further protection to vehicles. Auto-close of the boom barrier can be programmed through the controller. Duration of fast and slow speeds is programmed at the time of installation according to the length of the boom and frequency of traffic expected.