Features the fastest operating speed is 1. 5s, The pace is capable of being adjusted following multiple boom arm length. Digital control monitoring, Support delay automatic close functions. High safety, Support power off manually rise boom arm, Anti, Smash functions. The position of the orientation of rise / fall has the potential to serve as adjusted, And the digital encoder is adopted to limit the replacing the, Position automatically traditional and the, Limit structure position control is accurate. The barrier boom will rebound during the time it is blocked. Invertibility left and simple and, Right direction compact transmission mechanism, Effortless installation process on site.