HDCVI Recorders รุ่น DH-XVR4104HS-I/T 4CH Penta-brid 1080N/720P Compact 1U 1HDD WizSense Digital Video Recorder Dolynk cloud version: DMSS 2.0.30 and above, Dolynk Care 2.50.20 and above. 4-channel two-way talk over coaxial cable allows for seamless …