The DHI-NVR5232-EI is a 32-channel, 1U network video recorder from Dahua’s WizSense series, offering exceptional channel density in a compact chassis. It’s designed for businesses that need to manage a large number of camera feeds without expanding into a bulky rack-mounted system.
This recorder supports IP camera resolutions up to 32 MP and reaches a maximum decoding capability of 32 channels at 1080p@30fps. Bandwidth is rated at 384 Mbps for incoming, recording, and outgoing streams, dropping to 200 Mbps when AI processing is enabled, giving it strong throughput relative to its compact size.
On the AI side, the DHI-NVR5232-EI delivers 2-channel face detection and recognition, 4-channel perimeter protection, and 8-channel SMD Plus filtering onboard, with support for up to 20 face databases holding 20,000 images. Notably, this model extends AcuPick smart search across all 32 channels, giving operators fast, attribute-based footage retrieval at true full-channel scale. Paired with compatible Dahua cameras, it also unlocks ANPR, video metadata, stereo analysis, heat mapping, PPE detection, and smart sound detection.
A standout feature is the recorder’s multi-screen display flexibility, supporting main-screen layouts up to 36 channels simultaneously, making it well suited for high-density monitoring walls and control room setups where operators need to track many feeds at once.
Storage is handled through two SATA bays, each supporting up to 20 TB, along with N+M clustering and iSCSI support for teams planning scalable, redundant storage. Video output includes 4K-capable HDMI alongside VGA, with heterogeneous source configuration for flexible display setups.
Built on an industrial-grade processor with embedded Linux, the DHI-NVR5232-EI supports ONVIF, CGI, and SDK integration, along with third-party camera compatibility from brands including Axis, Sony, Panasonic, and Hanwha.
For organizations managing large camera counts who need maximum channel density, full-scale AcuPick search, and compact form factor, the DHI-NVR5232-EI is a highly efficient choice.
DHI-NVR5232-EI System
| Feature | Specification |
| Main Processor | Industrial-grade processor |
| Operating System | Embedded Linux |
| Operating Interface | Web, Local GUI |
DHI-NVR5232-EI AI & Analytics
| Feature | Specification |
| AI by Recorder | Face detection; face recognition; perimeter protection; SMD Plus |
| AI by Camera | Face detection; face recognition; video metadata (human, motor vehicles, and non-motor vehicles); perimeter protection; SMD; stereo analysis; crowd distribution; people counting; ANPR; vehicle density; heat map; PPE detection; smart object detection; smart sound detection |
| AcuPick Performance (Camera AI) | Max. 32-channel, 1 combined event per channel/s |
| Perimeter Performance (Recorder AI) | 4 channels, 10 IVS rules for each channel |
| Perimeter Performance (Camera AI) | All channels (16 targets/s) |
| Face Attributes | Gender; age group; glasses; expressions; face mask; beard |
| Face Detection Performance (Recorder AI) | 2 channels (up to 12 face images/s each channel) |
| Face Detection Performance (Camera AI) | 16 channels |
| Face Database Capacity | Up to 20 face databases with 20,000 images, with a total capacity of 2.5 G. Name, gender, birthday, address, credential type, credential No., countries & regions and state can be added to each face image. |
| Face Recognition Performance (Recorder AI) |
1. 16-channel FD (by camera) + FR (by recorder), image stream: 16 face images/s
2. 2-channel FD (by recorder) + FR (by recorder), video stream: 12 face images/s
|
| Face Recognition Performance (Camera AI) | 16 channels |
| SMD Plus by Recorder | 8 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain and lighting condition change |
| SMD by Camera | All channels (32 targets/s) |
| Video Metadata (Camera AI) | 8 channels |
| Human Attributes | Top color, top type, bottom color, bottom type, hat, bag, age, gender and umbrella |
| Motor Vehicle Attributes | License plate, plate color, vehicle body, vehicle model, vehicle logo, calling, seatbelt, vehicle interior, vehicle registration location |
| Non-motor Vehicle Attributes | Vehicle model, vehicle color, number of persons, helmet |
| ANPR by Camera | All channels (8 targets/s) |
| License Plate Database Capacity |
1. Create up to 20,000 plate numbers.
2. Blocklist and allowlist
|
DHI-NVR5232-EI Audio and Video
| Feature | Specification |
| Access Channel | 32 channels |
| Network Bandwidth |
AI disabled: 384 Mbps incoming, 384 Mbps recording and 384 Mbps outgoing
AI enabled: 200 Mbps incoming, 200 Mbps recording and 200 Mbps outgoing
|
| Resolution | 32 MP; 24 MP; 16 MP; 12 MP; 8 MP; 6 MP; 5 MP; 4 MP; 3 MP; 1080p; 720p; 960p; D1; CIF; QCIF |
| Decoding Capability (AI Disabled) | 2-channel 32 MP@25 fps; 2-channel 24 MP@25 fps; 4-channel 16 MP@30 fps; 5-channel 12 MP@30 fps; 8-channel 8 MP@30 fps; 10-channel 6 MP@30 fps; 12-channel 5 MP@30 fps; 16-channel 4 MP@30 fps; 32-channel 1080p@30 fps |
| Decoding Capability (AI Enabled) | 1-channel 32 MP@25 fps; 1-channel 24 MP@25 fps; 2-channel 16 MP@30 fps; 4-channel 12 MP@30 fps; 6-channel 8 MP@30 fps; 8-channel 6 MP@30 fps; 8-channel 5 MP@30 fps; 12-channel 4 MP@30 fps; 24-channel 1080p@30 fps |
| Video Output |
1 VGA, 1 HDMI
• VGA: 1920 × 1080, 1280 × 1024, 1280 × 720
• HDMI: 7680 × 4320, 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720
(Heterogeneous video source output for HDMI and VGA)
|
| Multi-screen Display |
Main screen: 1/4/8/9/16/25/36
Sub screen: 1/4/8/9/16
|
| Third-party Camera Access | ONVIF; Panasonic; Sony; Axis; Arecont; Pelco; Canon; Hanwha |
DHI-NVR5232-EI Compression Standard
| Feature | Specification |
| Video Compression | Smart H.265+; H.265; Smart H.264+; H.264; MJPEG |
| Audio Compression | G.711a; G.711u; PCM; G726 |
DHI-NVR5232-EI Network
| Feature | Specification |
| 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.); iSCSI |
| Mobile Phone Access | iOS; Android |
| Interoperability | ONVIF 25.06 (Profile T; Profile S; Profile G; Profile M); CGI; SDK |
| Browser | Chrome; IE; Safari; Edge; Firefox |
DHI-NVR5232-EI Recording Playback & Storage
| Feature | Specification |
| Multi-channel Playback | Up to 16 channels |
| Record Mode | General, motion detection; intelligent; alarm; POS |
| Backup Method | USB device and network |
| Playback Mode | Instant playback, general playback, event playback, target video, video clip, tag playback, smart playback (face and motion detection) |
| Disk Group | Yes |
DHI-NVR5232-EI Alarm
| Feature | Specification |
| General Alarm | Motion detection; local alarm; alarm box; camera external alarm; network alarm; scene changing; PIR alarm; thermal alarm |
| Anomaly Alarm | Error (no disk; disk error; low space; low quota space; abnormal disk health; network disconnection; IP conflict; MAC conflict; abnormal fan speed); video loss; video tampering; camera offline; audio detection |
| Intelligent Alarm | Face detection; perimeter protection; face recognition; video metadata (human, motor vehicles, and non-motor vehicles); SMD Plus; stereo analysis; crowd distribution; people counting; ANPR; vehicle density; heat map; PPE detection; smart object detection; smart sound detection |
| Alarm Linkage | Record; snapshot (panoramic); local alarm output; IPC external alarm output; audio; buzzer; log, preset; email |
DHI-NVR5232-EI Port & Interfaces
| Feature | Specification |
| Audio Input | 1-channel RCA |
| Audio Output | 1-channel RCA |
| Alarm Input | 4 channels |
| Alarm Output | 2 channels |
| Disk Interface | 2 SATA ports, each disk can contain up to 20 TB (This limit varies depending on the environment temperature) |
| RS-232 | 1 port |
| RS-485 | 1 port |
| USB | 2 (1 front USB 2.0 port, 1 rear USB 3.0 port) |
| HDMI | 1 |
| VGA | 1 |
| Network Port | 1 (10/100/1000 Mbps Ethernet port, RJ-45) |
DHI-NVR5232-EI General Specifications
| Feature | Specification |
| Power Supply | 12 VDC, 4 A |
| Power Consumption | Total output of NVR is ≤ 10 W (without HDD) |
| Net Weight | 1.57 kg (3.46 lb) |
| Gross Weight | 2.73 kg (6.02 lb) |
| Product Dimensions | 375.0 mm × 284.4 mm × 56.0 mm (14.76″ × 11.20″ × 2.20″) (W × D × H) |
| Packaging Dimensions | 433.0 mm × 141.0 mm × 366.0 mm (17.04″ × 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 |
FCC: 47 CFR FCC Part15, SubpartB, Class A
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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