... experience 2. Humanized clutch, 3. electronic limit switch, 4. automatical backtrack, 5. water-proof housing Product Information Advantage compared with ... anti-collision function, protecting the passengerF. The inductive function ,with the digital vehicle detectorG. Three open speed, 1.5s ... , 2-4s and 6s. The barrier is provided with remote controllor, manual button, and digital ...