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Products 
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4 Channel Digital Recorder $70
 MODEL NO.
HS-7504
Function & Characteristic.
H.264 video compression, provide high compression rate, save hard disk space;Real-time; 25 frames/s;4 video channels input,1video channels output can playback 4ch at the same time
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H.264 video compression, provide high compression rate, save hard disk space;
Real-time; 25 frames/s;
4 video channels input,1video channels output can playback 4ch at the same time
Support TCP/IP agreement, support USB backup
Video frame rate is adjustable;
Support remote devices and mouse;
Support 2000G hard disk
Without front and back panels use mouse and remote control the DVR.
Support multilingual
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Compression standard
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H.264
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Video signal
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PAL/CCIR，625 lines，50 fields/second
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Video input
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Composite：1.0V p-p/75Ω，BNC linker×4
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Video output
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Composite：1.0V p-p/75Ω，BNC linker×1
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Audio input
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NONE
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Audio output
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NONE
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Alarm input
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NONE
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Alarm output
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NONE
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Network mode
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10/100MMeet Ethernet port automatically，support LAN\WAN and ADSL Dynamic IP networks
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Backup mode
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network，USB
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Resolution
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vision：704×576 ；Image：CIF 352×288
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Hard disk
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SATA；Support 2000G hard disks
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Code function
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Set numeric password
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Power source
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DC12V 2.0A/50Hz
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Power
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6W（not include the hard disk）
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Environment temperature
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Work Temperature：+5℃~+50℃；humidity：< 90%
Store Temperature：-20℃~+70℃；humidity：< 95%
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