Car Digital Video Recorder Support two 2T SATA Hard disk 1 channel D1, ... support PTZ Smart phone view supported 16 Channel Car Digital Video Recorder Product Introduce: The serial of DVR include 4 channels, ... output4 alarm outputVideo modeManual recording, Scheduled recording, Movement alarm video and External alarm recordingNetwork interfaceRJ45, 100M/1000MPTZSupportCommunication interfaceRS485*1, ...