... .High definition&speed 2.4 channels 3.Surveillance&monitoring 4-channel stand-alone DVR kit with LCD monitor inbuilt Package Kit1×4CH ... capacity to 2THDD Remain Time HintSupportNetwork and Protocol1 RJ-45 10/100M via Ethernet, Support TCP/IP,PPPOE,DHCP,DNS, ... °C-50°CWorking Humidity10%-90%LCD Size15inch 4:3 CCFL XGA Camera Speicification: 4-channel stand-alone DVR kit with LCD monitor inbuilt