... line -255 PTZ,31 DVR Surveillance System PTZ and DVR Control Keyboard 1, Completely replace the embedded DVR's panel and remote ... control's function;2, Simultaneously control the embedded DVR, speed dome camera and decoder;3, All input and ... the standard transmitting distance is 1200 meters; Specification:ModelMY-4101KTProtocolEmbeded DVR:Hikvision, Dahua, high easy, Hanbang Dali; High Speed ...