Dahua 4CH Video Encoder


Quick Overview

Encode up to four analogue signals to an IP stream.

Dahua part NVS0404HE

Enables the encoding of up to four analogue signals / cameras. The encoded stream can then be viewed via the web interface or recorded to any Dahua NVR or viewed from any smart phone.

A built in SD slot allows direct recording with a full schedule and range of alarm triggers including motion detect.

Mobile Phone Support
All Dahua encoders, cameras and NVRs feature fully featured mobile apps.   These are supported for iPhone and Android.   Features include live view, playback, alarm monitoring, status monitoring, full remote setup and push alerts.  Push alerts send notifications straight to your phone regarding motion detect or other alarms.


Smart PSS 
Smart PSS (smart pro surveillance software) is a free camera management tool for PC or MAC that comes with all Dahua cameras. This allows 16CH or recording and playback on a PC or MAC.  It allows alarm management and has multi-monitor support.  This software can be used to access and record streams from the video encoder.

  • encodes up to four analogue camera
  • full web based interface 
  • SD slot for recording, features a full DVR suite of features including motion detect and alarm recording
  • remote access via web, smart PSS or smart phone
  • H.264 compression and jpeg image capture
  • four channel reatime D1 recording and streaming
  • High quality two-way talk
  • Dual encoding streams and ACF (Activity Controlled Frame rate) supported
  • Support TV output with simple OSD display
  • Multi-zone video detection and privacy masking
  • 4 alarm inputs /2 alarm outputs
  • RS485 and RS232 interface
  • 3D intelligent positioning with DAHUA PTZ dome
  • Built-in web server, NVR, MSS & CMS


Model DH-NVS0104HE DH-NVS0204HE DH-NVS0404HE
Main Processor Dual-core embedded processor
Operating System Embedded LINUX
Input 1 channel 2 channel 4 channel
Output 1 TV output, BNC
Standards PAL(625Line, 50f/s), NTSC
Input 1 channel 2 channel 4 channel
Output 1 channel
Two-way Talk 1 channel Input, 1 channel Output
Resolution 1280×1024, 1280×720, 1024×768, 800×600
Display Split 1 1/4 1/4
Privacy Masking 4 rectangular zones (each camera)
Video/Audio Compression H.264 / G.711
Mainstream D1/BCIF/CIF/QCIF(1~25/30fps)
Extra stream D1/BCIF/CIF/QCIF
Digital Watermark Support
Video Detection & Alarm
Trigger Events Recording, PTZ, Tour, Alarm, Video Push, Email, FTP, Buzzer & Screen tips
Video Detection Motion Detection, MD Zones: 396(22×18), Video Loss & Camera Blank
Alarm Input 4 channel
Relay Output 2 channel
Playback & Backup
Search Mode Time/Date, Alarm, Motion Detection & Exact search (accurate to second)

Playback Functions

Play, Pause, Stop, Rewind, Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoom
Memory Slot SD, Max 32GB

Backup Mode


Ethernet RJ-45 (10/100Base-T)
3G EVDO(CDMA1X)/WCDMA and other 3G network (model–E/-C only)
Wi-Fi 802.11bg (model –W only)
Network Functions TCP/IP, PPPOE,DDNS, FTP, IP Filter, DNS, SMTP, NTP, DHCP
Auxiliary Interface
USB 1 Port
RS485 PTZ control
Power Supply DC12V / 3A
Power Consumption <5W
Working Environment -30°C ~+50°C / 10%~90% / 86kpa~106kpa
Dimension(W×D×H) 162mm ×136mm × 30mm
Weight 1.0Kg

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