?Nowadays£¬ even almost households have installed a monitoring systemto avoid beingattacked by lawbreakers. DVR£¬ as the core product in monitoring system£¬ is of great significance. We are glad to offer 4 Channel 420TVL 36SMD LEDs 1/4"SHARP Stripe Pattern DVR (US Standard) Black to you if you intend to buy one. Built-in 36SMD LEDs£¬ it could offer you bright and board views of your surroundings. Except that£¬ this DVR supports IR distance up to 20 meters. You can apply it to your daily life without hesitation!                                    Features             NTSC system DVR£¬ in a good condition<br> Superb material£¬ refined workmanship£¬ advanced technology and high performance<br> Auto white balance and gain control<br> Designed with stripe pattern<br> Support IR distance up to 20 meters<br> Fast and accurate recording transmission and playback<br> 4-Channel DVR set£¬ easy to install and operate<br> Built-in 36SMD LEDs£¬ providing you clear and legible views of videos or pictures<br> Widely used in office buildings£¬ houses£¬ and shops ect.<br> Allow record£¬ playback£¬ backup£¬ control and network operation at the same time<br>                                                            Specifications            Camera        <br>TV System    NTSC    <br>Pixels    510(H) x 492(V)    <br>Image Device    1/4" SHARP    <br>Horizontal Definition    420TVL    <br>Minimum Illumination    0 Lux (IR ON)    <br>IR Distance    20m    <br>LED Quantity    36pcs    <br>Lens    3.6mm    <br>Power Adapter    DC 12V£¬ 500mA    <br>White Balance    Auto    <br>Auto Gain Control    Auto    <br>Electronic Shutter    1/60 ~ 1/100£¬000 sec    <br>Color    Black    <br>Dimensions    (4.53 x 2.36)" / (11.5 x 6)cm (L x Dia.)    <br>DVR        <br>Video Compression    H.264    <br>Video System    NTSC    <br>Operation System    Embedding Linux    <br>Video Input / Output    4 Channels BNC Input£¬ 1 Channel BNC Output    <br>Ohter Output    1 x VGA Output    <br>Audio Input / Output    1 Channel RCA Input£¬ 1 Channel RCA Output    <br>Network and Protocol    1 x RJ45£¬ 10/100M; Support TCP/IP£¬ PPPCE£¬ DCNS£¬ DHCP£¬ UPnP    <br>Display Resolution    D1(704 x 480)    <br>Recording Resolution    D1(704 x 576)£¬ HD1(704 x 240)£¬ CIF(352 x 240)    <br>Recording Frame Rate    D1@100fps£¬ HD1@100fps£¬ CIF@100fps    <br>Recording Backup    1/4 Channels playback    <br>Recording Mode    Manual£¬ Timer£¬ Motion Deteciton£¬ Remote    <br>Recording Backup    USB£¬ Moved Hark Disk£¬ USB Writer£¬ Network    <br>Network Transmission    4 Channels Real-time Network Transmission with QCIF Resolution    <br>Email Alarm    Send Pictures to the designated email    <br>Multiplex Operation    Live£¬ Display£¬ Playback£¬ Recording£¬ Backup£¬ Mobile phone Surveillance£¬ Network Simultaneously    <br>HDD    Support 1 STAT HDD£¬ Capacity to 2TB (HDD is not included)    <br>Mobile phone Surveillance    Support Windows£¬ Symbian£¬ iPhone£¬ Blackberry£¬ Android OS    <br>Multi-Language    Support    <br>PTZ Control    PELCO-D£¬ PELCO-P    <br>USB    2 x USB 2.0    <br>Power Supply    DC 12V£¬ 2A    <br>Dimensions    (8.27 x 7.87 x 1.77)" / (21 x 20 x 4.5)cm (L x W x H)    <br>Environmental        <br>Working Temperature    0¡æ-+55¡æ    <br>Working Humidity    10%-90%    <br>Total Weight    4325 g / 152.56 oz    <br>                                                            Package Includes            1 x 4 Channel DVR<br>4 x Cameras<br>4 x 20m Connecting Cables<br>1 x Mouse<br>2 x US Standard Power Adapter<br>1 x CD Driver<br>1 x Power Cable<br>1 x User Manual<br>