Product Guide
All Products  >  CCTV DVR  >  Without Screen  >  TW-DH9204
Economical 4ch D1 DVR
Sale Points
1.4ch D1 real time recording
2.Audio input:1ch,Audio output:1ch(4ch input is optional)
3.Alarm input:1ch,Alarm output:1ch
4.SupportMobile phone remote view
5.Support RS485
6.Support free DDNS domain name
7.Support 1pcs HDD,unlimited for the capacity
Use the standard H

1.Use the standard H.264 video compression format stream lower,high quality,

longer recording time, taking up less bandwidth resources  

2.GUI OSD interface,more intuitive,easier to use for user-friendly

3.Support 4ch Full D1 realtime recording resolution,ahead to D1 High-Definition period.

4.Dual-stream design,network remote view effects and local recording effects parameters

can be set separately,independently of each other.

5.Hexaplex operation simultaneously:Preview,recording,playback,backup,network live,

mobilephone view 

6.Support Multiple channel playback (Support 4CH playback simultaneously, each channel

 can be enlarge to full screen)

7.Support Network function:one IE browser centralized monitoring and CMS Software for

multiple DVR (up to 255 DVR simultaneously)

8.Recording playback support:Normal play,Speed play,Fast back play,Manual single-frame slow play

9.Supports Built-in free DDNS domain name

10.Support Mobilephone remote view by Symbian S60V3/V5;WindowsMobile Android system;Iphone;Blackberry

11.Support alarm triggered recording will send alerts matter to the designated email.

12.System auto recovery to power after power reconnected,and return to the pre-power-down state




Video Compression Format 


 Video System 


 Video Input/Output(BNC) 

 4CH BNC input/1CH BNC output 

 Audio Input/Output 

 1CH audio input,1CH audio output(RCA) 

 Maximum Recording Rate
(each channel support at D1 real-time) 

 D1:704*480,120fps <NTSC> /704*576,100 fps<PAL>
 HD1:704*240 ,120fps <NTSC> /704*288 ,100 fps <PAL>
 CIF:352*240 ,120fps <NTSC> /352*288,100 fps <PAL>
 QCIF:176*120,120fps <NTSC> /176*144 ,100 fps <PAL>

 Image Quality Setting 

 Supper Best,Well,Good,Medium,Normal and Bad 

 Hard Disk Storage 

 Support one SATA HDD, unlimited for the capacity 

 Alarm Input/Output

1ch input,1ch output

 Multiplex Operation 

 Live display/record/playback/backup/network transmit 

 Recording Mode 


 Playback Mode 

 Multiple slow and rapid play speeds,manual and single-frame
 play modes,and support of drag the sliding bar to set.

 Backup Device 

 USB flash disk/USB remove HDD/Network

 Pre-alarm Recording 

 Recording for 10 seconds before alarming 

 Network Protocol 


 Ethernet remote view 

 Support remote surveillance up to 10 users simultaneously 

 VGA Interface 

 YES ,support VGA and BNC can work at the same time

 Log record function 


 Video Loss Detection 


 Video Adjustable 

 Hue /Saturation /Contrast /Brightness adjust 

 PTZ Control 


 IR Remote control/USB Mouse 


 Power Source 

 DC 12V  


 260(W) x 45(H) x 234(D) 



Reference Practical Product Connection Picture

Internet Explorer Surveillance Interface



CMS 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