DAHUA NVR4232-EI 32CH 1U 2HDDs WizSense Network Video Recorder

System

Main Processor

Industrial-grade processor

Operating System

Embedded Linux

Operating Interface

Web; Local GUI

AI

AI by Recorder

Face detection, face recognition, perimeter protection, and SMD Plus;

AI by Camera

Face detection; face recognition; perimeter protection; SMD Plus; ANPR; people counting; stereo analysis; heat map

Perimeter Protection

Perimeter Performance AI by Recorder (Number of Channels)

2 channels, 10 IVS rules for each channel

Perimeter Performance of AI by Camera (Number of Channels)

8 channels

Face Detection

Face Attributes

Gender; age group; glasses; expressions; face mask; beard

Face Detection Performance of AI by Recorder (Number of Channels)

1 channel (up to 12 face images/s each channel)

Face Detection Performance of AI by Camera (Number of Channels)

8 channels

Face Recognition

Face Database Capacity

Up to 10 face databases with 200,00 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 of AI by Recorder (Number of Channels)

8-channel FD (by camera) + FR (by recorder),image stream: 12 face images/s
1-channel FD (by recorder) + FR (by recorder), video stream: 12 face images/s

Face Recognition Performance of AI by Camera (Number of Channels)

8 channels

SMD Plus

SMD Plus by Recorder

4 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain and lighting condition change

SMD Plus by Camera

8 channels

Audio and Video

Access Channel

32 channels

Network Bandwidth

AI disabled: 256 Mbps incoming, 256 Mbps recording and 256 Mbps outgoing
AI enabled: 180 Mbps incoming, 180 Mbps recording and 180 Mbps outgoing

Resolution

16 MP; 12 MP; 8 MP; 6 MP; 5 MP; 4 MP; 3 MP; 1080p; 960p; 720p; D1; CIF

Decoding Capability

AI disabled: 2-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 4-channel 8 MP@30 fps; 6-channel 5 MP@30 fps; 8-channel 4 MP@30 fps; 16-channel 1080p@30 fps
AI enabled: 1-channel 16 MP@30 fps; 2-channel 12 MP@30 fps; 3-channel 8 MP@30 fps; 4-channel 5 MP@30 fps; 6-channel 4 MP@30 fps; 12-channel 1080p@30 fps

Video Output

1 HDMI, 1 VGA
HDMI: 3840 × 2160, 1920 × 1080, 1280 × 1024, 1280 × 720
VGA: 1920 × 1080, 1280 × 1024, 1280 × 720
*Simultaneous/heterogeneous video sources output for VGA and HDMI is configurable.

Multi-screen Display

1st Screen: 1/4/8/9/16/25/36
2nd Screen: 1/4/8/9/16

Third-party Camera Access

Panasonic, Sony, Samsung, Axis, Pelco, Arecont, ONVIF, Canon

Compression Standard

Video Compression

Smart H.265+; H.265; Smart H.264+; H.264; MJPEG

Audio Compression

G.711a; G.711u; PCM; G726

Network

Network Protocol

HTTP; HTTPS; TCP/IP; IPv4/IPv6; UPnP; SNMP; UDP; SMTP; NTP; DHCP; DNS; IP Filter; PPPoE; DDNS; FTP; Alarm Server; IP Search (Support Dahua IP camera; DVR; NVS; etc.); P2P; auto register

Mobile Phone Access

iOS; Android

Interoperability

ONVIF 22.06(Profile T; Profile S; Profile G); CGI; SDK

Browser

Chrome; IE9 and later; Firefox

Recording Playback

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

Storage

Disk Group

Yes

Alarm

General Alarm

Motion detection; privacy masking; video loss; scene changing; PIR alarm; IPC external alarm

Anomaly Alarm

Camera disconnection; storage error; disk full; IP conflict; MAC conflict; login locked; and cybersecurity exception

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

Port

Audio Input

1-channel RCA

Audio Output

1-channel RCA

Alarm Input

4 channels

Alarm Output

2 channels

HDD Interface

2 SATA ports, up to 16 TB.The maximum HDD capacity varies with 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)

General

Power Supply

12 VDC, 4 A

Power Consumption

<10 W(without HDD)

Net Weight

1.51 kg (3.33 lb)

Gross Weight

2.76 kg (6.08 lb)

Product Dimensions

375 mm × 284.3 mm × 53 mm (14.76" × 11.19" × 2.09") (W × L × H)

Packaging Dimensions

433 mm × 141 mm × 366 mm (17.05" × 5.55" × 14.41") (W × L × 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)

Installation

Rack or desktop

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