Description
The Dahua NVR4232-4KS3 is a reliable 32-channel network video recorder designed to deliver high-quality video management in compact setups, ideal for cities, transportation, education, and finance applications.
It supports various video compression formats, including Smart H.265+, H.265, Smart H.264+, H.264, and MJPEG, optimizing storage efficiency without compromising video quality. With a maximum decoding capability of 8 × 1080p at 30 fps or 2 × 8MP at 30 fps, and a bandwidth capacity of 160 Mbps for incoming data, this NVR seamlessly handles high-resolution streams from IP cameras supporting resolutions of up to 12 MP.
The Dahua NVR4232-4KS3 supports 32 IP camera channels, allowing administrators to monitor large areas with multiple cameras simultaneously, making it ideal for scaling a security system to meet expanding surveillance needs.
Two SATA interfaces support hard disks of up to 20TB each (not included), giving businesses flexible storage options for longer video retention and the ability to store weeks of high-resolution footage without added complexity.
Integrated with Dahua’s WizSense technology, the recorder features Smart Motion Detection (SMD) by recorder, which can distinguish target vehicles and humans from ordinary ones in real time, supporting 2-channel SMD to reduce false alarms and improve overall alert accuracy.
When an IPC is connected to the Dahua NVR4232-4KS3, a variety of AI functions become available such as face detection, face recognition, perimeter protection, people counting, and stereo analysis across up to 6 channels, giving businesses richer analytics even on standard camera hardware.
This NVR is designed with convenience in mind, featuring one-click arming and disarming for straightforward system control, along with EPTZ support for enhanced digital pan-tilt-zoom functionality during playback and live viewing.
Video output is straightforward, with simultaneous HDMI (4K) and VGA (1080P) outputs available for local display, giving installers flexibility depending on the monitors already in place at a given site.
Connectivity is rounded out with 1 Gigabit RJ45 Ethernet port and 2 USB 2.0 ports, ensuring stable and secure network connectivity for continuous surveillance along with convenient backup and firmware update options.
Energy efficiency is well handled, as the Dahua NVR4232-4KS3 consumes less than 10W (without HDD) and operates on a 12 VDC, 4A power supply, performing reliably across a wide temperature range of –10°C to +55°C.
With its high channel density, flexible AI analytics, and dual-bay storage capacity, the Dahua NVR4232-4KS3 is a strong choice for businesses building out scalable, mid-to-large surveillance infrastructure.
Dahua NVR4232-4KS3 System
| Specification | Details |
|---|---|
| Main Processor | Industrial-grade processor |
| Operating System | Embedded Linux |
| Operating Interface | Web, Local GUI |
Dahua NVR4232-4KS3 AI
| Specification | Details |
|---|---|
| AI by Recorder | SMD |
| AI by Camera | Face detection; face recognition; perimeter protection; SMD; people counting; stereo analysis; heat map |
Perimeter Protection
| Specification | Details |
|---|---|
| Perimeter Performance of AI by Camera (Number of Channels) | 6 channels |
Face Detection
| Specification | Details |
|---|---|
| Face Attributes | Gender; age group; glasses; expressions; face mask; beard |
| Face Detection Performance of AI by Camera (Number of Channels) | All channels (6 targets/s) |
Face Recognition
| Specification | Details |
|---|---|
| Face Recognition Performance of AI by Camera (Number of Channels) | All channels (6 targets/s) |
SMD Plus
| Specification | Details |
|---|---|
| SMD Plus by Recorder | 2 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain and lighting condition change |
| SMD by Camera | All channels (12 targets/s) |
Audio and Video
| Specification | Details |
|---|---|
| Access Channel | 32 channels |
| Network Bandwidth | AI disabled: 160 Mbps incoming, 128 Mbps recording and 60 Mbps outgoingAI enabled: 80 Mbps incoming, 80 Mbps recording and 60 Mbps outgoing |
| Resolution | 12 MP;8 MP;6 MP;5 MP;4 MP;3 MP;1080p;720p;960p;D1;CIF;QCIF |
| Decoding Capability | AI disabled: 1-channel 12 MP@30 fps; 2-channel 8 MP@30 fps; 2-channel 6 MP@30 fps; 3-channel 5 MP@30 fps; 4-channel 4 MP@30 fps; 8-channel 1080p@30 fpsAI enabled: 1-channel 12 MP@30 fps; 1-channel 8 MP@30 fps; 2-channel 6 MP@30 fps; 2-channel 5 MP@30 fps; 3-channel 4 MP@30 fps; 7-channel 1080p@30 fps |
| Video Output | 1 HDMI, 1 VGASimultaneous:HDMI: 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720VGA: 1920 × 1080, 1280 × 1024, 1280 × 720Heterogeneous:HDMI: 1920 × 1080, 1280 × 1024, 1280 × 720VGA: 1920 × 1080, 1280 × 1024, 1280 × 720 |
| Multi-screen Display | AI disabled:Main Screen: 1/4/8/9/16/25/36, Sub Screen: 1/4/8/9/16AI enabled:Main Screen: 1/4/8/9/16, Sub Screen: 1/4/8/9/16 |
| Third-party Camera Access | ONVIF; Panasonic; Sony; Axis; Arecont; Pelco; Canon; Hanwha |
Compression Standard
| Specification | Details |
|---|---|
| Video Compression | Smart H.265+; H.265; Smart H.264+; H.264 |
| Audio Compression | G.711a; G.711u; PCM; G726 |
Network
| Specification | Details |
|---|---|
| Network Protocol | HTTP; HTTPS; TCP/IP; IPv4; IPv6; RTSP; UDP; NTP; DHCP; DNS; SMTP; UPnP; IP Filter; FTP; DDNS; SNMP; Alarm Server; P2P; Auto Registration; IP Search (Supports IP camera, DVR, NVS, etc.) |
| Mobile Phone Access | iOS; Android |
| Interoperability | ONVIF 24.12 (Profile T; Profile S; Profile G); CGI; SDK |
| Browser | Chrome; IE; Safari; Edge; Firefox |
Recording Playback
| Specification | Details |
|---|---|
| Multi-channel Playback | Up to 16 channels |
| Record Mode | General, motion detection; intelligent; alarm |
| Backup Method | USB device and network |
| Playback Mode | Instant playback, general playback, event playback, tag playback, smart playback |
Dahua NVR4232-4KS3 Storage
| Specification | Details |
|---|---|
| Disk Group | Yes |
Dahua NVR4232-4KS3 Alarm
| Specification | Details |
|---|---|
| General Alarm | Motion detection; privacy masking; video loss; scene changing; PIR alarm; IPC external alarm |
| Anomaly Alarm | Error (no disk; disk error; low space; low quota space; network disconnection; IP conflict; MAC conflict); video loss; video tampering; camera offline; audio detection |
| Intelligent Alarm | Face detection; face recognition; perimeter protection; SMD Plus; people counting; stereo analysis; heat map |
| Alarm Linkage | Record; snapshot; IPC external alarm output; audio; buzzer; log; preset; email |
Dahua NVR4232-4KS3 Port
| Specification | Details |
|---|---|
| Audio Input | 1-channel RCA |
| Audio Output | 1-channel RCA |
| Alarm Input | 4 channels |
| Alarm Output | 2 channels (1-channel 12 V 1 A output） |
| Disk Interface | 2 SATA ports. Each disk can contain up to 20 TB. This limit varies depending on the environment temperature. |
| USB | 2 (1 front USB 2.0 port, 1 rear USB 2.0 port) |
| HDMI | 1 |
| VGA | 1 |
| Network Port | 1 (10/100/1000 Mbps Ethernet port, RJ-45) |
Dahua NVR4232-4KS3 General
| Specification | Details |
|---|---|
| Power Supply | 12 VDC, 4 A |
| Power Consumption | Total output of NVR is <10 W(without HDD) |
| Net Weight | 1.49 kg (3.28 lb) |
| Gross Weight | 2.77 kg (6.11 lb) |
| Product Dimensions | 375.0 mm × 282.9 mm × 53.0 mm (14.76″ × 11.14″ × 2.09″) (W × D × H) |
| Packaging Dimensions | 433.0 mm × 141.0 mm × 366.0 mm (17.05″ × 5.55″ × 14.41″) (W × D × H) |
| Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| Storage Temperature | –20 °C to +60 °C (–4 °F to +140 °F) |
| Operating Humidity | 10%–93% (RH), non-condensing |
| Certifications | CE-EMC: EN 55032:2015+A1:2020; EN IEC 61000-3-2:2019+A1:2021; EN 61000-3-3:2013+A1:2019+A2:2021; EN 55035:2017+A11:2020; EN 50130-4:2011+A1:2014 CE-LVD: EN 62368-1:2014 |
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