This is 4 CH CCTV Kit, 4 Channel Real-time Combo DVR with 500G HDD and 4 Waterproof IR CCTV dome Cameras, 20M IR range.

Features:
1). 1 X DVR integrated with 195inch LCD monitor and 500G hard disk(ELP-7554F).
2). 4 X 1/3 Color CCTV IR Dome Camera(ELP-7554F).
3). 4 X 20M CCTV Video cable.
4). 1 X One power adaptor for 4 CCTV Cameras.

Combo DVR Specification:

1. 15"LCD all-in-one Standalone DVR(H. 264)
2. Display Resolution: PAL: D1(704*576), NTSC: D1(704*480)
3. Recording Frame Rate: D1@100fps, HD1@100fps, CIF@100fps adjustable
4. 1/4 channel playback simultaneously(Optional playback channel)
5. 4Channels real-time Network transmission with CIF resolution
6. Support 4CH Audio, alarm, network PTZ mobile phone surveillance (Win CE/ Symbian/ iPhone/ Blackberry/ Android)
7. Support 1SATA HDD, each HDD up to 2 TB at max(optional, price not included)
8. LCD Size: 15inch 4: 3 CCFL XGA

CCTV Camera Specification(ELP-7540F):
Image Sensor: 1/3-inch color Sony super CCD.
Sync Systme: Internal.
Resolution: 540 TV Lines.
S/N Ratio: 48dB (AGC OFF).
Minimum Illumination: 0 Lux/F1.2(IR on).
IR Range: 24 IR LEDs (20M IR range).
White Balance: ATW / AWC switchable.
Gain Control: AGC ON / OFF switchable.
Electronic Shutter: NTSC: 1/60~1/120, 000 sec/PAL: 1/50~1/120, 000sec.
B. L. C. Function: ON/OFF switchable.
Video Output: Composite 1.0V p-p at 75 ohm.
Gamma Correction: 0.45.
Lens Mount: 3.6mm/6mm(Optional).
Operation Temperature: -10 degree TO 50 degree.
Operational Humidity: Within 85%RH.
Supplied Voltage: DC12V± 1V /500mA.