... million 100% duty cycle,heavy duty Fault auto-detect,swing away Free maintain Intelligent Automatic Boom BarrierDescriptions1) This boom ... collision mechanism: need to buy extrally5) This boom barrier gate provides optional housing color as yellow (default),orange, white, ... .5A, DV 12V/1A8) Wireless remoter(optional): two button remote transmitter, distance>20m9) RS 485 interface: 9600bps, ASCII decimal ...