This is with built-in RS485 decoder.
New series of outdoor waterproof pan-tilt unit.
With a internal Pelco decoder, it can support Pelco_D protocol so can be integrated and controlled by DVR, DVR cards and controller that also support Pelco_D.
1x pan-tilt unit without power adapter
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Block 4 West, SEG Technology Park, Hua Qiang Road North, Shenzhen, China