... and recording 2.4 alarm inputs,2 alarm outputs 4 Channels Color CCTV DVR,Surveillance DVR Features :Monitoring, playing ... navigation system via sensorsEquipped with remote controller and shock mount4 CHANNELS DVR(Digital Video Recorder) SPECIFICATIONS TV System: PAL / ... 2.5inch SATA port HDDAlarm input: 4 channels alarm inputAlarm output: 2 channels alarm outputNetwork: 10/100M Base-T,RJ45,Ethernet ...