Product Guide
All Products  >  Car Security   >  Car DVR  >  TW-MD4103
SD card 3G Car DVR
Sale Points
1.4ch video input,1ch output
2.GPS,3G are optional
3.1ch microphone or two lines audio input
4.4ch alarm input,2ch output
5.Support RS232,RJ45
6.DC6-36V wide voltage
7.Support DC12V/2A power output
8.Up to 2pcs SD card storage
  • H.264 video compression format, 4-channel video input, 1 composite video output; used by the U.S. ADI Professional 10bit image processing chip, in the same code on the market shed more than 8bit chip processing to improve the quality of the picture 4 times. 4-channel image processing chip for each path independently without disturbing each other.
  • Industrial-level design, using imported special vehicle connectors to ensure the stability of product performance
  • Accident under the power-off protection function: using special UPS technology, which enables the machine to cut off the external power supply can work 3 to 5 seconds, can ensure video data integrity preservation, to avoid file corruption, convenient accident inquiries.
  • Adopt the most advanced license plate display technologies and power-down off delay feature
  • Support for GPS, G-sensor accelerometer sensor, optional features
  • Support for 3G wireless transmission function, the various 3G standards, WCDMA, CDMA2000, TD-SCDMA ...., or GPRS, EDGE, WiFi wireless transmission, optional features.
  • Real-time video: 100f / s (PAL); 120f / s (NTSC); video resolution: CIF / HD1 / D1 optional.
    Maximum can support 2-CH, D1, 2 CH, CIF format.
  • 1 CH microphone or two lines of audio input, G.726 compression format;
  • 4 channel alarm input, 2-CH alarm output.
  • Communication InterfaceRS232 RJ45
  • Video mode: start video, timing video, police video.
  • Video file formats: ASF, common software can be used VLC player, or use the playback software package to support 1CH or 4CH synchronization with playback
  • Data Storage: Max 2 32G can support the SD card (the default one card). Japanese original SD card connector
  • Boot time is short: You can start within 15 seconds the machine quickly into the normal operating mode. Support key switch machine, timer switch machines, delay shutdown.                                                                                               
  • 8-36V DC voltage input ,suitable for all kinds of vehicles; DC 12V/2A output
  • low power consumption, the machine to normal working condition <5W;
  • High-performance
  • anti-vibration                                                                                                    
  • Wide temperature and operating range, operating temperature: -25 ~ +70
  • Mini and industrial design appearance, easy to installation, ease of concealment.





Operating system

Linux (2.6)

Video Compression Format

H.264 main profile. Using Hisilicon Hi3511 high-performance processor, 10bit sample chips. Each video was processed separately, without disturbing each other work.


Character overlay function, support logo, time and date, vehicle ID and other information as the video.


Graphical OSD Interface

Through the remote control to set system parameters

Video and video systems

Video Input

From 1CH to 4 CH CVBS video input, 1.0Vp-p, 75Ω

Video Output

1CH CVBS video output, 1.0Vp-p, 75Ω


To support 1CH and 4-CH preview format

Video Resolution

Support CIF, HD1, D1 optional, maximum support 2CH D1 + 2CH CIF

Video Quality

1-4 video quality options, the maximum 1, minimum 4

Video Rate

PAL: 100F/s , CCIR625 line,50 field

NTSC: 120F/s, CCIR525 line,60 field;

CIF: 256Kbps ~ 1.5Mbps, 4 levels picture quality optional

HD1: 600Kbps ~ 2.5Mbps, 4 levels picture quality optional

D1:  800Kbps ~ 3Mbps, 4 levels picture quality optional

Video stream standard

ISO14496-10 standard

Video mode

The default auto-video, support regular video, alarm video


Audio input

1CH microphone or 2CH linear input

Audio output

2CH output, Output Level:1Vpp ~2Vpp

Compression Format

G.726, Rate 5KB/s


Alarm Input

4CH Alarm Input

Support police before the 10 seconds and the video-length dynamically allocated

Alarm output

2 CH Alarm output

Communication Interface

RS232RJ45 10M/100MAutomatically adapt to network interface

Wireless Transmission

Support built-in 3G wireless transmission capabilities, WCDMA, EVDO, HSPA, TD-CDMA .... optional, (GPRS, EDGE, WiFi wireless transmission can be customized).

GPS ,G-sensor

Support Module Built-in

Video Storage

SD storage card

Support for two SD cards, each with maximum support 32G, loop video, automatic switching, data is automatically covered

Firmware Upgrade

Supports SD Card Upgrade

File Format


File System


Video playback

Video Search

According to the time video, video mode (alarm, normal), video memory card video file, etc. to search for video.


Maximum support 4-ch synchronization with playback, while the vehicle information on file for analysis, support fast forward, rewind, play, pause,

Support for 2, 4, 8, 16 times the speed of fast forward or rewind

Power and consumption


1, key switch machine --- According to the signal switching machines, can also be set to delay the shutdown. 2, timer switch machine


DC:+8V ~ +36V

Output Voltage


Power-Off Protection

UPS technology, video data intact saved to ensure that the file is not damaged when an unexpected power down.

Power Rate

Normal working condition5W; Standby0.5W

Work environment



-25 ~ +70


20% to 80%

Security Management



User passwords, administrator password, two-level management



112(W) x36(H) x138(D) mm

Net weight



The front panel for the device which supports dual SD card:



The front panel for the device which supports solo SD card:



Back panel:



Connection Picture




Manage Platform




Player software



IE Mobile Video management (Optional)



IE living view interface


400 60
4th, A4 Buliding, Gui Gu Dong Li New Material Industry Park, Guanlan, Long Hua New District, ShenZhen, Post Code:518110
Toll Free:86-755-29018069, 86-755-83722468, Fax:86-755-29018068