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4ch SD card and HDD recording mobile DVR 9704C
AHD 720P mobile DVR,Hisilicon chip
4 ch video and audio input,1ch audio output,1ch VGA output
1. Power adapter:
Professional design for vechile 9-36VDC voltage input(Standard ISO7637-P5A-200V/Static electricity GB/T-17626/RE radiation EN55022)
protection circuit for undervoltage, short circuit, reverse connection ect. suit for any typle vechile.
Support intelligent power management identification, low power automatic shutdown, turn off low power consumption;
2. data storage:
The use of special file management mechanism, the data encryption, effective protection of data security;
proprietary SD card bad sectors detection technology, both to ensure video continuity, but also extend the SD life;
 Built-in super capacitor, to avoid abnormal power loss and SD card damage;
Support 2.5" HDD Max. 1*2TB
Support SD card storage, support 256G;
3. the interface transmission:
Support GPS / BD positioning, high sensitivity, fast positioning;
   Support WIFI wireless download, support 802.11b / g / n, frequency 2.4GHz;(Plus 15USD to get WiFi function)
4. Support 3G/4G module, LTE/HSUPA/HSDPA/WCDMA/EVDO
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If you need to know the details of menu, please check the video on link: https://youtu.be/XYrsIwCt0Hs
Item Device parameter Performance
System Main processor Hi3520DV200
Operating system Embedded Linux OS
Operating language Chinese/English
Operating interface GUI, support mouse
Password security User password/Admin password
Video standard PAL/NTSC
Video compression H.264
 Image resolution 720P /960H/D1/CIF
Playback quality 720P /960H/D1/CIF
Compound mode 4ch 720P/4ch 960H/2ch 720P+2ch 960H
Decoding ability 1ch 720P real time
Recording quality Class 1-6 optional
Image display Single/QUAD display optional
Audio Compression G.726
Audio recording Audio & Video synchronized recording
Recording & Playback Recording mode Manual/Alarm
Video bit rate Full frame 4096Mbps,6 classes image quality optional
Audio bit rate 8KB/s
Storage media SD card + HDD/SSD storage
Video inquiry Inquiry by channel/Recording type
Local playback Playback by file
Firmware upgrading Upgrading mode Manual/Automatical/Remote/Emergency Recovery
Upgrading method USB disk/Wireless network/SD card
Interface AV input 4ch aviation interface
AV output 1ch VGA video output, 1ch aviation AV output
Alarm input 4 digital inputs (2 Positive trigger, 2 Positive/Negative trigger)
HDD/SSD 1 HDD/SSD (up to 2TB, support hot plug/unplug)
SD card 1 SDXC High speed card (up to 256GB)
USB interface 1 USB 2.0 (support U disk/mouse)
Ignition input 1 ACC signal
LED Indication PWR/RUN
Disk lock 1
Debug port 1
Function extention GPS/BD Support detecting antenna Plug in/Unplug/Short circuit
WIFI 802.11b/g/n, 2.4GHz
Others Power input 10~36V DC
Power output 5V 300mA
Power consumption Standby 3mA
Maximum consumption 18W  @12V 1.5A @24V 0.75A
Working temperature -20 --- 70℃
Storage 720P   1G/h/channel    
960H  750M/h/channel
Dimension 162mm*153mm*52mm


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