mana

I am thinking of purchasing the above system from Eaby from a company in Honk Kong. There is no brand name, however the price seems to be resonable ($520). All the feedback suggests that the system is great. However reading through the forums it seems that I need to ask the question. Is this system all right to purchase for a domestic application, note I am just making sure that I purchase something that is suitable. Thanks for your help in advance. I have included the specs. DVR Features: * Embedded Linux OS * H.264 baseline Hardware Compression * Support SATA HD up to 1TB * Video Input: Composite BNC×4 * Video Output: BNC×1(TV Monitor BNC Output); VGA×1(PC Monitor VGA Output) * Audio Input: Composite RCA×4 * Audio Output: RCA×1 * Resolution: (a)Preview 720×576（PAL),720×480（NTSC） 352×288（PAL),320×240（NTSC (b)Recording 720×576（PAL），720×480（NTSC） 352×288（PAL），320×240（NTSC） * Signal System: NTSC / PAL * Display: 200/240 fps * Record: 200/240 fps * Recording Mode: Continuous / Time Scheduled / Motion Detection / Sensor Triggered / Network Recording * Display Mode: Each / 4 CH * Playback Search: Time & Date * Network: RJ45 TCP/IP * Remote Access: Internet Explorer * IR Remote Control * USB mouse control:USB * Support Remote View via 3G Mobile: * PTZ via RS-485 Port Camera Features: Pickup Device 1/4"SHARP Horizontal Resolution 420 TVL Pixels PAL:500(H)×582(V) NTSC:510(H)×492(V) TV SYSTEM PAL/NTSC LED 36 PCS Lens 6mm Sync System Internal Syncronization Usable Ⅲumination 0.000LUX/F1.2 (LED on) S/N Ratio ≥48dB(AGC Off) Gamma Characterlstic 0.45 Video Output 1.0Vp-p 75Ω Scanning System PAL:625 lines 50 Field/sec NTSC:525 lines 60 Field/sec Electronic Shutter Time Auto,PAL 1/50-100,000Sec NTSC 1/60-1/100,000Sec White Balanc Auto Power Supply DC12V±10% 600 mA Cheers, Mana