IPC-HUM4231S-L4-S3 is a 2MP pinhole IP camera ideal for discreet video surveillance in environments such as ATMs and shops. Equipped with a 1/3" CMOS sensor and 2.8mm fixed lens, it offers Full HD images with Starlight technology for advanced night vision. It supports H.265+/H.264+ compression and intelligent functions such as intrusion and crossing detection. It guarantees clear videos even in high-contrast environments thanks to 120dB WDR and 3D NR. Includes integrated microphone for two-way audio. ONVIF compatible and remotely manageable via DMSS app. 12V DC power supply. Dahua
Artikel-Nr.: IPC-HUM4231S-L4-S3
Marke: Dahua
EAN: 6923172536563
Disponibilità: 18

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IPC-HUM4231S-L4-S3 | 2.8mm 2MP IP PINHOLE CAMERA

The Dahua IPC-HUM4231S-L4-S3 is a 2MP pinhole IP micro camera designed for discreet video surveillance applications in indoor environments such as banks, shops and ATMs. Equipped with a 1/3" CMOS sensor and a 2.8mm fixed lens, it offers Full HD 1080p resolution at 25/30 fps, ensuring clear images even in low light conditions thanks to Starlight technology. It supports H.265+/H.264+ video compression for efficient storage space management. Intelligent features include intrusion and line crossing detection, while 120dB WDR and 3D NR technologies ensure superior image quality in environments with strong light contrasts. The camera has two-way audio with built-in microphone and supports 12V DC power supply. It is compatible with ONVIF protocols and can be managed via the DMSS app for efficient remote control.
Main specifications:
- 2.8mm optics: wide viewing angle for detailed and discreet shots
- 2MP Full HD resolution: clear images even in difficult conditions
- Starlight technology: clear vision in low-light environments
- Smart video analytics: intrusion detection, line crossing and motion detection
- Audio and ONVIF compatibility: integrated microphone and remote management via app
Further details
✅ Intelligent Monitoring:

Technical data sheet
Model | IPC-HUM4231S-L4-S3 |
Image Sensor | 1/3" CMOS |
Max. Resolution | 1920 (H) × 1080 (V) |
ROM/RAM | 128 MB / 128 MB |
Scanning System | Progressive |
Electronic Shutter Speed | Auto/Manual 1/3 s–1/100,000 s |
Min. Illumination | 0.01 lux@F2.0 (Color, 30 IRE) 0.001 lux@F2.0 (B/W, 30 IRE) |
Y/N Ratio | >56dB |
lens | |
Lens Type | Fixed focal |
Lens Mount | M12 |
Focal Length | 2.8mm |
Max. Openings | F2.0 |
Field of View | Horizontal: 96°; Vertical: 55°; Diagonal: 110° |
Iris Control | Fixed |
Close Focus Distance | 0.8 m (2.62 ft) |
Smart Event |
|
IVS | intrusion; tripwire |
Video | |
Video Compression | H.265; H.264; H.264B; MJPEG (Only supported by the sub stream) |
Smart Codec | Smart H.265+; Smart H.264+ |
Video Frame Rate | Main stream: 1920 × 1080 @(1–25/30 fps ) sub stream: 704 × 576 @ (1–25 fps)/704 × 480 @(1–30 fps) *The values above are the max. frame rates of each stream; for multiple streams, the values will be subjected to the total encoding capacity. |
Stream Capability | 2 streams |
Resolution | 1080p (1920 × 1080); 1.3M (1920×960); 720p (1280 × 720); D1 (704 × 576/704 × 480); VGA (640 × 480); CIF(352 × 288/352 × 240) |
Bitrate Control | CBR/VBR |
Video Bitrate | H.264: 3kbps–6144kbps H.265: 3kbps–6144kbps |
Day/Night | Color/B/W |
BLC | Yes |
HLC | Yes |
WDR | 120dB |
White Balance | Car; natural; street lamp; outdoor; manual; regional custom |
Gain Control | Car; manual |
Noise Reduction | 3D NR |
Motion Detection | OFF/ON (4 areas, rectangular) |
Region of Interest (RoI) | Yes (4 areas) |
Image Rotation | 0°/90°/180°/270° (Support 90°/270° with 1080P resolution and lower) |
Mirror | Yes |
Privacy Masking | 4 areas |
Audio | |
Built-in MIC | Yes |
Audio Compression | G.711a; G.711Mu; PCM; G.726 |
Alarm | |
Alarm Event | Network disconnection; IP conflict; illegal access; motion detection; video tampering; tripwire; intrusion; audio detection; voltage detection; security exception |
Network | |
Network Port | RJ-45 (10/100Base-T) |
SDK and API | Yes |
Cyber Security | Video encryption; Firmware encryption; Configuration encryption; Digests; WSSE; Account lockout; Security logs; IP/MAC filtering; Generation and importing of X.509 certification; syslog; HTTPS; 802.1x; Trusted boot; Trusted execution; Trusted upgrades |
Network Protocol | IPv4; IPv6; HTTP; TCP; UDP; ARP; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; PPPoE; Good morning |
Interoperability | ONVIF® (Profile S/Profile T); CGI; P2P; Milestones |
User/Host | 20 (Total bandwidth: 48M) |
Storage | FTP; SFTP; NAS |
Browser | IE Chrome Firefox |
Management Software | Smart PSS; DSS; DMSS |
Mobile Client | iOS; Android |
Certifications | CE-LVD: EN62368-1; CE-EMC: Electromagnetic Compatibility Directive 2014/30/EU; FCC: 47 CFR FCC Part 15, Subpart B |
Port | |
Audio Input | 1 channel (RCA port) |
Audio Output | 1 channel (RCA port) |
Environment | |
Power Supply | 12VDC |
Power Consumption | Basic: 1.2 W (12 VDC) Max. (H.265 + intelligence on + WDR): 1.56 W (12 VDC) |
Operating Temperature | –40 °C to +60 °C (–40 °F to +140 °F) |
Operating Humidity | ≤95% |
Storage Temperature | –40 °C to +60 °C (–40 °F to +140 °F) |
Casing | Metal |
Product Dimensions | 31.0 mm × 31.0 mm × 30.0 mm (1.22" × 1.22" × 1.18") |
Net Weight | 81g (0.18 lb) |
Gross Weight | 138g (0.30 lb) |