Dual SD Card Car Mobile DVR Security System for Vehicle Security with GPS from China MDVR Manufacture

Dual SD Card Car Mobile DVR Security System for Vehicle Security with GPS from China MDVR Manufacture

  • Model: KD-403S
  • Features:
  • 1. 4 channel (2D1+2CIF / 4 HD1 / 4CIF), GPS module optional
  • 2. H.264 video compression, Linux operation systems
  • 3. Digital timestamp, motion detection
  • 4. Dual SD cards slots, max 64GB for each
  • 5. 8 seconds power-off delay for data protection
  • 6. Black box for vehicles- record speed, position, acceleration

Dual-SD-Card-4-Channel-Mobile-DVR


This is a 4CH DualMobile DVR System with GPS, G-sensor support, which is an economical 

and basic model for  vehicle cctv security system for bus, coach, train, transport vehicle, policy

 vehicle etc, the GPS enable for tracking the route after the vehicle returns to station; also 

G-sensor will trigger system to start recording automatically when there is any accidents; 

Dual SD support upto 64GB * 2pcs for longer time recording.



1) 4-way audio and video input resolution D1/HD1/CIF optional
2) H.264 video compression, Linux operating system, dual-stream
3) The digital watermarking functional
4) Dual SD card storage, single card to support a maximum capacity of 32GB
5) Built-in GPS module optional
6) Dynamic detection
7) 8 seconds delay the power data protection, prevent momentary power failure 

caused the loss of data and storage of file corruption

8) Rich peripheral interfaces, such as: RS485, RS232, differential speed interface
9) Car black box function, recording speed, position, momentum, acceleration, 

temperature, brake, reverse, turn, alarm and other important information. 

9) DC8V ~ 36V wide voltage power supply, the industry standard embedded design, 

metal aluminum casing, low power 

10) Operating temperature -25 ℃ to +85 ℃


Tab 1:MDVR Specifications
Project Parameters Specifications
System Language Chinese/English
OSD Graphical User Interface(OSD Menu)
Password Security Users Password/Administrator Password
Video Video Input 4 channels compound video input
Video Output 1 channel compound video output
Video Preview 1 channel, 4 channels
Video Standard PAL/ NTSC
Image Compression H.264
Audio Audio Input 4-ch audio input
Audio Output 1-ch audio output
Recording mode Audio and video sync
Image Processing & Storage Video Format CIF/HD1/D1 selectable
Video stream ISO14496-10
Video Rate(kbps) CIF: 1536Kbps ~ 128Kbps,8levels optional,1level is highest
  HD1: 2048Kbps ~ 380Kbps,8levels optional,1level is highest
  D1: 2048Kbps ~ 400Kbps,8levels optional,1level is highest
Audio Rate(kbps) 64kbps
Storage Support dual sd card, 64GB for each
Alarm Alarm Input 6-ch alarm input, no alarm below 4V,high level alarm above 4V
Alarm Output 2-ch alarm output,12V output
Communication Port RS485 Interface Support 1-ch RS485
RS232 Interface Support 1-ch RS232
GPS External GPS Module, Geographic coordinates, Speed can be recorded in coding flow.
Software Analysis of playback Playback on PC and preview vehicle information
Upgrade Support SD card upgrade

Tab2:Basic Electrical Specifications
Items Parameters Specifications
Power Input 8—36V Input voltage:+8V~+36V,when long-term under 8V,or long-term over 36V,automatically power off and enter into protected mode.
Power Output 12V 12V(+/-0.2V), Max:2A
Vehicle Key ≤4V OFF
  ≥5V NO
Video Input Impedance 75Ω 75Ω for each video input impedance
Video Output Volt 2Vp-p Output 2Vp-p CVBS analog signal,display dev need 75Ω to fit
I/O Interface 0—4V Low level alarm
  >4V High level alarm
SD-card interface 1 or 2 SD cards 1. 64GB for each card
    2. SD-card for storage, support recording and system upgrade
Operating Temp -40℃-80℃ Under well-ventilated environment




1.SD card lock 

2.Infrared signal receiver 

3.SD card working indicators 

4.alarm working indicators 

5.DVR recording working indicators

6.GPS working indicators

7.Power working indicators  

8.Power port 8-36V  

9.Integrated cables with RS485, RS232, sensor cables

for communication and PTZ camera use  

10.Audio video output port 
11.GPS antenna port 
12.Camera port(with audio, video, power)  




Ricmor Technology Development Co., Ltd

Tel:+86-775-81713882

Contact Person:RCMCCTV

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