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Product Description

LOREX SG21CD7444UQ-A80 21" COLOR QUAD OBSERVATION SYSTEM WITH BUILT-IN DIGITAL VIDEO RECORDER 21" QUAD MONITOR ;HIGH RESOLUTION WITH 480 TV LINES;VIEW 4 CAMERA LOCATIONS IN REAL TIME, 30 FPS SIMULTANEOUSLY;DIGITAL FREEZE WITH 2X ZOOM;MULTIPLEXER ; 100240 MULTI-VOLTAGE SYSTEM;REMOTE OPERATION; PLUG-and-PLAY USB INTERFACE PROVIDES REMOTE VIEWING CAPABILITY VIA THE INTERNET; SYSTEM INCLUDES THREE .25" CCD COLOR CAMERAS WITH 2-WAY AUDIO RECORDING and 1 CCD COLOR-DOME CAMERA WITH 1-WAY AUDIO; BUILT-IN DVR ;80 GB HDD and WILL SUPPORT UP TO A 250 GB HDD; DIGITAL RECORDING and PLAYBACK ALLOWS FOR INSTANT RETRIEVAL OF RECORDED IMAGES ;SECURITY-PASSWORD PROTECTED;PC INTERNET-MONITORING COMPATIBLE WITH MICROSOFT WINDOWS XP/2000

The Lorex SG21CD7444-A80 21-inch Color Quad with Built-in Digital Video Recorder and 4 Cameras provides convenience, versatility, and quality in a robust and complete system. This system allows you to view up to four camera locations in real-time sequentially in full-screen, or simultaneously in quad or PIP (picture-in-picture) modes. The included four cameras have a built-in motion-sensing function so you won't miss any action, while the built-in DVR (digital video recorder) allows 100-hours of real-time and 2,250-hours of total recording. Featuring password security protection, remote control, and other features the Lorex SG21CD7444-A80 is a complete, self-contained observation system perfect for everything from the home or business applications, to professional security installations.

The SG21CD7444-A80's 21-inch color picture-tube monitor can be operated via its built-in main panel or via an included remote control. Built inside a durable metal cabinet housing, this monitor includes four DIN/BNC (Bayonet Neill-Concelman, RF-type) composite video inputs, and four RCA audio inputs. Also included are four alarm inputs with one alarm output for connecting external alarm devices. The SG21CD7444-A80 monitor features on-screen display of date/time/camera, and a stand-by switch that allows recording to occur while monitor is off. Multi-voltage compatible, the SG21CD7444-A80's monitor runs on 90 to 250-volts of power, achieves an high horizontal resolution of 480 TVL (TV lines) at up to 30 fps (frames per second), and has an operating temperature of 0 to 40 degrees Celsius.

The cameras that come with the SG21CD7444-A80 utilize 0.25-inch color CCD (charge-coupled device) image sensors with a 3.6mm fixed lenses. Powered from the monitor via their connecting cables, these cameras achieve a horizontal resolution of 330 TVL and can receive a usable picture at a minimum illumination level of 0.5 Lux for very low-light condition viewing. Constructed of a durable white ABS (Acrylonitrile Butadiene Styrene) plastic, these units feature an automatic electronic shutter with speeds ranging from 1/60 to 1/100,000 of a second, and PIR (passive InfraRed) motion sensors that alert you of camera activity. The SG21CD7444-A80's cameras come with their own 63-foot connection cable allowing you to install them virtually anywhere, and can operate in temperatures ranging from -20 to 50 degrees Celsius.

The Lorex SG21CD7444-A80's built-in DVR utilizes a modified MJPEG video compression, and achieves a maximum video resolution of 720 by 576 effective pixels and recording resolution of 640 by 272 effective pixels. The SG21CD7444-A80 provides you with date and time or full-list searching, and password protection for security purposes. This DVR has a built-in 80 GB (Gigabyte) IDE-type (Integrated Drive Electronics) HDD that allows up to 100-hours of real-time and 2,250 hours of total recording. This unit features three adjustable video-quality settings and four selectable recording modes, and a 1,000-event alarm history log. For additional alarm or control functionality, the SG21CD7444-A80 has a RS-232 connection that allows you to connect an alarm-terminal block and remotely control the system via a PC, and a slave HDD input for additional storage.

Technical Features:

• Camera lenses: 3.6mm fixed
• Image sensor: 0.25-inch color CCD
• Resolution: monitor 480 TVL up to 30 fps, camera 330 TVL
• Operating temperature: -20 to 50 degrees Celsius for camera, 0 to 40 degrees Celsius for monitor
• Compression format: modified MJPEG
• Digital storage space: 80 GB via internal IDE-type HDD
• Camera dimensions: 2.5 x 3 x 2 inches (W x D x H)

About Surveillance Camera Technical Features
Lux rating is the measurement used to indicate how sensitive a camera is to light, and stands for the level of light reflected off a piece of paper by a candle from one meter away. Thus a sensitivity of three Lux would mean a camera could generate an acceptable picture of a piece-of-paper-sized object that was illuminated by the equivalent of three candles from one meter away. The lower the Lux level, the better the camera's ability to work in low-light conditions. The camera's resolution should be greater than or equal to the resolution supported by the system's recorder or monitor. The S/N, or signal to noise ratio, is an important measure of a camera's quality. A poor camera, low-light conditions or poor wiring causes "noise" which consumes processing power and disk space. A camera with a wide dynamic range is ideal, especially for recording areas in which both indoor and outdoor light are present. CCD (charge-coupled device) sensors provide high-quality images that are less susceptible to noise. CMOS (complimentary metal-oxide semiconductor) sensors offer less image quality, but are usually more cost-effective and energy efficient.

What's in the Box
Color quad monitor (built-in DVD), 4 cameras, 4 cables, 4 camera brackets, hard disk drive, 2 keys for cartridge, and owner's manual.