AUTOMATIC BARRIERS For control and management of parking lots, toll gates, goods yards, railway crossings, commercial premises, apartment block access and more applications. Arm length from 2.5 meters to 6 meters, opening time from 1 second to 7 seconds. 1.Self-lock oil immersed electromechanical gear-motor, maintenance free. 2.Adjustable balancing system 3.Overheat and over-current protection 4.Manual operation in case of power failure 5.Key release system (DC303/DC304) 6.Auto-close function, time adjustable 7.Safety obstruction reverse (an infrared photocell must be installed) 8.Built-in control panel, available to IC card reader, loop detector, infrared photocells, alarm lamp & remote control 9.Proximity limit switch 10.Base plate is provided for floor installation 11.Easy to install: the barrier can be install to the right or the left 12.Quality coating 13.High reliability & low maintenance 14.Quick speed & silence operation