• Small size,Easy installation
• Tropicalised and industrial design 
• Polycarbonate, self extinguishing.  
• Rugged housing-non combustible, 
  ABS plastic-heat resistance. 
• No Need External Power Supply.
• Auto speed and auto data direction.
• Distance upto 1800m, Speed 115200bps.
• Automatic data control, auto distinguish and auto direction.