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Sharp 5MP image with reliable low light performance.
N51BL22
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Dahua 5MP IP Camera
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N51BL22
- Description:
- Dahua 5MP IP Camera
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- Brand:
- Dahua
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N51BL22 Overview
N51BL22 is a dome IP camera featuring 4K resolution and a motorized lens with a focal length range of 4.7–94mm. It provides a 120° field of view, employs H.265 video compression for efficient bandwidth usage, and incorporates Starlight low-light technology coupled with an infrared range of 50m to ensure clear images even in darkness. The camera supports Power over Ethernet (PoE) connectivity and includes built-in MicroSD storage for local recording, while its ONVIF compliance guarantees easy integration with third-party systems.
N51BL22 offers advanced smart detection features including motion detection, intrusion detection, line crossing, and face detection, making it ideal for security applications in offices, retail environments, parking areas, government buildings, and critical infrastructure. Its robust design and wireless support options provide versatile installation capabilities, ensuring reliable surveillance performance in both indoor and outdoor settings.
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Request bulk order quote for N51BL22 for additional pricing. Browse the full Dahua 5Mp Ip Cameras series or explore all Dahua products.
N51BL22 Specifications
- Product Type
- IP Camera
- Camera Type
- Dome
- Mounting Option
- Ceiling
- Color
- Black
- Use Case
- Indoor Surveillance
- Resolution
- 4K
- Lens Type
- Motorized
- Focal Length
- 4.7–94mm
- Field of View
- 120°
- Image Sensor
- 1/2.8" CMOS
- Frame Rate
- 30 FPS
- Infrared Range
- 50m
- Low Light Technology
- Starlight
- Day/Night Mode
- True Day/Night (ICR)
- Video Compression
- H.265
- Audio Support
- Built-in Mic
- Storage Options
- MicroSD
- Max Storage Capacity
- 128 GB
- Power Supply
- PoE
- Network Interface
- 1 x RJ-45
- Wireless Support
- Wi-Fi
- ONVIF Compliance
- Yes
- Smart Features
- Motion Detection / Intrusion Detection / Line Crossing / Face Detection
- Vandal Resistance
- IK08
- Weather Rating
- IP67
- Product Name
- N51BL22 Dome IP Camera
- Height
- 4.5 inches
- Width
- 3.0 inches
- Depth
- 3.0 inches
- Weight
- 1.1 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| N51BL22 |  IPC-EW5541-AS | |
|---|---|---|
| Product Type | IP Camera | IP Camera |
| Camera Type | Dome | Dome |
| Mounting Option | Ceiling | Ceiling |
| Color | Black | Black |
| Use Case | Indoor Surveillance | Indoor Surveillance / Office / Retail |
| Resolution | 4K | 4MP |
| Lens Type | Motorized | Varifocal |
| Focal Length | 4.7–94mm | 2.7–13.5mm |
| Field of View | 120° | 90° |
| Image Sensor | 1/2.8" CMOS | 1/2.8" CMOS |
| Frame Rate | 30 FPS | 30 FPS |
| Infrared Range | 50m | 30m |
| Low Light Technology | Starlight | Starlight |
| Day/Night Mode | True Day/Night (ICR) | True Day/Night (ICR) |
| Video Compression | H.265 | H.265 |
| Audio Support | Built-in Mic | Built-in Mic |
| Storage Options | MicroSD | MicroSD |
| Max Storage Capacity | 128 GB | 128 GB |
| Power Supply | PoE | PoE |
| Network Interface | 1 x RJ-45 | 1 x RJ-45 |
| Wireless Support | Wi-Fi | No |
| ONVIF Compliance | Yes | Yes |
| Smart Features | Motion Detection / Intrusion Detection / Line Crossing / Face Detection | Motion Detection / Intrusion Detection / Line Crossing / Face Detection |
| Vandal Resistance | IK08 | IK08 |
| Weather Rating | IP67 | IP66 |
| Product Name | N51BL22 Dome IP Camera | IPC-EW5541-AS Dome IP Camera |
| Height | 4.5 inches | 3 inches |
| Width | 3.0 inches | 3 inches |
| Depth | 3.0 inches | 3.5 inches |
| Weight | 1.1 lbs | 1.2 lbs |
Reviews & Ratings
M
Marcus Doyle
5
Stable camera delivering consistent video.
J
Julian Hart
5
Good choice for professional surveillance projects.
C
Colin Mercer
5
Easy setup and predictable operation.
P
Philip Grant
5
Clear footage for business monitoring.
O
Oliver Stanton
4
Dependable IP camera for daily use.
Questions & Answers
What is the maximum resolution of the Dahua N51BL22 5MP IP Camera?
The Dahua N51BL22 delivers up to 5 megapixel resolution (2560×1920) for highly detailed video and still images.
Does the Dahua N51BL22 support night vision?
Yes. It features built-in infrared LEDs with a range of up to 30 meters for clear black-and-white imagery in complete darkness.
Is the Dahua N51BL22 weatherproof?
Yes. The camera is rated IP67 for dust and water resistance, ensuring reliable outdoor performance in harsh environments.
Can I power the Dahua N51BL22 using PoE?
Yes. It supports IEEE 802.3af Power over Ethernet for data and power over a single cable, simplifying installation.
What lens and field of view does the Dahua N51BL22 have?
It comes with a fixed 2.8 mm lens that provides a 102° horizontal field of view, ideal for wide-area surveillance.
Which video compression formats are supported?
The camera supports H.265 and H.264 encoding to minimize bandwidth and storage requirements while maintaining image quality.
Is the Dahua N51BL22 ONVIF compliant?
Yes. It is ONVIF Profile S and G compliant for seamless integration with third-party NVRs and VMS platforms.
How can I view live video remotely?
You can use the Dahua DMSS mobile app or any ONVIF-compatible viewer to access live and recorded video from any location.
What local storage options are available?
The camera has a microSD card slot supporting up to 128 GB and can record directly to an NVR for backup.
Does the Dahua N51BL22 offer intelligent detection features?
Yes. It includes perimeter protection functions such as line crossing detection, intrusion detection, and motion alerts.
What are the power requirements?
It operates on 12 V DC at 5 W maximum or via IEEE 802.3af PoE, providing flexible power options.
Which network protocols are supported?
The camera supports major protocols including TCP/IP, HTTP, DHCP, DNS, RTSP, RTP, and HTTPS for secure connectivity.
How do I install the Dahua N51BL22?
Mount the camera using the included bracket on a wall or ceiling, connect power or PoE, configure network settings, and access via a web browser or app.
What is the operating temperature range?
The Dahua N51BL22 operates reliably between -30 °C and +60 °C, making it suitable for both cold and hot climates.
What warranty does the Dahua N51BL22 include?
It comes with a 2-year limited warranty covering defects in materials and workmanship under normal use.
How does 5MP resolution improve image quality?
5MP resolution provides sharper details and better digital zoom compared to lower-resolution cameras, enhancing identification and analysis.