This is a complete recording and monitoring system that allows you to view the security cameras in local host or online from any internet enabled Pc or over the world. It comes with four weatherproof Ir cameras and can display all four (quard view) at the same time. The Lcd/Dvr has built-in Dvr with advanced H.264 compression that can record four cameras view simultaneously and play back high quality image. According to users demand, the recording can be set a 24 hours schedule or only record when motion detected or alarm detected. Via network, you can download the recorded file for backup and upgrade latest sofware. Besides, user friendly instruction icons, mouse or remote control, and multi language sofware make it easy to use. 4 Channels Real time built in Dvr operating system. Advanced H-264 compression algorithm with Higher image quality and lower bite rate. Dsp hardware compression for each channel. Frame rate pal-100Fps/4 CH and NTSC-120Fps/4CH. Unique Usb mouse control. Remote surveiliance embedded Ps operation system. User friendly graphic menu interface with operation tips. CCD camera. Max. resolution: 1280 (H) x 1024 (V) pixels. Contrast Ratio: 800:1. Brightness: 300cd/m2. Display color: 16.2M. Viewing Angle: 160 degree. System: PAL/NTSC. Operation system: Embedded PSOS. Operation Interface: Support front panel Key/Mouse/Remote control operation. Video Input: 4CH (BNC) 1.0VP - P.75O. Audio Input: 4CH Audio Input 200 - 100mv 10K O (RCA). Audio Output: 1CH Audio Output 200 - 3000mv 5K O (BNC). Display Resolution: Real time: D1 704 x 576/704 x 480. PAL/NTSC: Play back: CIF 352 x 288/352 x 240. Compression format: H.264. Frame rate: PAL: 1f/s - 25f/s per channel configurable NTSC: 11f/s per channel configurable. Hard disk: Built in one Sata port, 250GB recommend. Hard disk storage: Audio: PCM 28.8M Bute/H; Video: 56 - 900M Byte/H. Alarm input: 4 Channel grounding alarm input. Alarm output: 2CH Relay output. USP port: 2 USB2.0 high spee