Intelligent control of microproces-sors and precision machinery manufacturing Smart self-learning system Double track and rubber design, low noise, opens and closes smoothly Built-in receiv-er works with learning code remote Special track and hanger design to make safe working Various terminals, work with access keypad, photocell, UPS, interlock, function switch, and so on Monitored battery backup with optional opening programs and Working time limit setting Door working cycle memo.