... fully if the angle between boom and vertical plane beyond 45 degree. If power failure occurs during boom opening, boom ... fully if the angle between boom and level surface beyond 45 degrees.Anti-condensation in cold climateThe barrier remains low power consumption ... , distance>20m9) RS 485 interface: 9600bps, ASCII decimal encoded10) Arm:45×100mm Aluminum alloy11) Housing: 2mm cold-roller sheet, IP 54 ...