This PTZ camera offers robust surveillance for expansive outdoor areas. It's designed for users who need to monitor large spaces day and night, providing clear imaging and intelligent tracking of human and vehicle activity. Its powerful zoom and pan/tilt capabilities allow for dynamic area coverage and detailed observation.
Features
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25x Optical Zoom: Get incredibly close to distant subjects without losing clarity, ideal for monitoring large properties or specific points of interest.
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Starlight Technology: Capture clear, colorful video in extremely low-light conditions, extending effective surveillance into the night.
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Auto-tracking 1.0: The camera automatically follows moving human and vehicle targets, ensuring they remain in view even across wide areas.
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Perimeter Protection: Accurately detect intrusions and tripwires while filtering out false alarms from environmental factors like animals or leaves.
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Face Detection: Identify and capture faces within the scene, enhancing security and aiding in post-event analysis.
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SMD 3.0 (Smart Motion Detection): Focus on real threats by accurately distinguishing between human and vehicle movements and other insignificant motion.
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100m IR Illumination: Provides excellent night vision capabilities, allowing the camera to see clearly up to 100 meters in complete darkness.
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IP66 Weather Protection: Built to withstand harsh outdoor conditions, ensuring reliable operation in rain, dust, and extreme temperatures.
Perfect for:
- Large commercial parking lots
- School campuses and perimeters
- Industrial facilities and warehouses
- Outdoor public spaces
- Farms and agricultural properties
- Residential estates with extensive grounds
Installer Tips:
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Optimal Placement: For effective auto-tracking and perimeter protection, mount the PTZ camera at a height that provides a clear, unobstructed view of the area of interest, ideally between 3-6 meters for general surveillance.
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PoE+ for Simplicity: Utilize PoE+ (802.3at) for power and data over a single Ethernet cable, simplifying wiring and reducing installation time, especially for remote locations.
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Network Bandwidth: Ensure adequate network bandwidth for 4MP streaming, especially if multiple PTZ cameras are being deployed or if continuous recording is enabled.
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DORI Distances: Refer to the DORI (Detect, Observe, Recognize, Identify) distances in the technical specifications to plan camera placement for your specific monitoring needs.
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MicroSD Card for Redundancy: Always install a high-capacity microSD card as a local storage backup, even when connected to an NVR, to ensure continuous recording in case of network issues.
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Cable Management: Use a weatherproof junction box to protect cable connections from environmental elements and ensure a clean, secure installation.
Downloads
Quick-Read Specs
| Feature |
Specification |
| Resolution |
4MP (2560 × 1440) |
| Lens Options |
5 mm–125 mm (25x optical zoom) |
| Night Vision |
IR up to 100 m |
| Deterrence |
N/A |
| AI Features |
SMD 3.0, Auto-tracking 1.0, Perimeter Protection, Face Detection |
| Audio |
1x Input, 1x Output |
| Storage |
Micro SD card (up to 512 GB) |
| Power |
12 VDC/2 A, PoE+ (802.3at) |
| Weather Rating |
IP66 |
Extra Info
Starlight Technology for Superior Low-Light Performance:
The Starlight technology integrated into this camera goes beyond standard night vision. By leveraging advanced image sensors and sophisticated image processing, it significantly enhances sensitivity to light. This allows the camera to produce clear, vivid, and even colorful video in challenging low-light conditions where traditional cameras would only show a blurry black and white image. This is particularly beneficial for identifying details like vehicle colors or clothing at night, providing more actionable intelligence.
Intelligent Features for Proactive Security:
The WizSense series, which this camera belongs to, is built with an independent AI chip and deep learning algorithms. This empowers features like SMD 3.0 and Perimeter Protection to drastically reduce false alarms. SMD 3.0 accurately differentiates between human and vehicle movements and other irrelevant motion like swaying trees or rain, ensuring you only get alerts for actual threats. Perimeter Protection further refines this by allowing you to define virtual tripwires and intrusion zones, filtering out non-threatening events like animals or falling leaves, and improving the overall accuracy of your alarm system.
Auto-Tracking 1.0 for Dynamic Surveillance:
Auto-tracking 1.0 is a powerful feature that enables the camera to automatically follow a detected moving object, whether it's a person or a vehicle. Once triggered, the camera will pan, tilt, and zoom to keep the target within the frame. This is invaluable for monitoring dynamic environments where subjects might move across a wide area, ensuring continuous observation without manual intervention. This can be particularly useful in areas prone to theft or unauthorized access, as the camera will maintain focus on the suspicious activity.
DORI Distances for Effective Planning:
The DORI (Detect, Observe, Recognize, Identify) standard provides a clear framework for understanding the camera's capabilities at various distances. While the intelligent functions have their own specific ranges, the DORI distances give a general indication of how well a person viewing the video can distinguish subjects. For instance, at 250 meters, you can 'Identify' a person, meaning you can recognize them. Understanding these distances helps in strategic camera placement to achieve specific surveillance goals, ensuring you can capture the level of detail required for your application.
Robust Design for Outdoor Reliability:
Designed for the rigors of outdoor deployment, this PTZ camera boasts an IP66 weather rating, making it completely protected against dust ingress and powerful water jets. Additionally, it can operate in extreme temperatures ranging from –40 °C to +65 °C (–40 °F to +149 °F). This robust construction, coupled with TVS 6000 V lightning, surge, and voltage transient protection, ensures continuous and reliable performance even in the most demanding environmental conditions. This makes it a dependable choice for mission-critical outdoor surveillance.
Cybersecurity Protections
Dahua builds in strong cybersecurity protections including encrypted video streams, secure firmware updates, and access controls. This guards against data breaches or unauthorized remote access — a key consideration for business and home networks alike.
More About AcuPick - Smart Video Search with Precision AI
Dahua’s AcuPick technology revolutionises video surveillance by using advanced AI to pinpoint people or vehicles across recorded footage with remarkable speed and accuracy. Instead of scrubbing through hours of video manually, AcuPick enables users to filter footage by specific targets, drastically cutting down search times and boosting operational efficiency. Integrated into a range of Dahua cameras (including TiOC series) and compatible NVRs, AcuPick delivers a seamless and intelligent search experience.
Highlights of AcuPick:
AI-Driven Precision:
AcuPick leverages intelligent algorithms to differentiate between human and vehicle activity, refining search results to what truly matters.
Smart Filtering:
Search footage using key attributes like clothing colour or vehicle type—no need to know the exact time an incident occurred.
Instant Video Recall:
With just a few clicks, users can zero in on critical moments, improving response times and streamlining investigations.
False Alarm Reduction:
By filtering out irrelevant motion, AcuPick helps reduce nuisance alerts, leading to more reliable monitoring.
Flexible Deployment:
Whether through Dahua's smart cameras or NVR integration, AcuPick fits into a wide range of security setups.
Practical Applications:
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Retail & Offices: Track customer flow or monitor for unauthorized access.
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Car Parks & Garages: Instantly retrieve footage of accidents or suspicious activity.
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Public Spaces: Quickly find persons of interest using visual identifiers.
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Residential Estates: Enhance safety by identifying vehicle movements or visitors.
AcuPick transforms surveillance from reactive monitoring to proactive intelligence, saving time while elevating security across the board.
Q&A
Can this camera record in color at night?
Yes, thanks to its Starlight technology, this camera can capture clear, colorful video even in very low-light conditions. When it's completely dark, the camera will switch to its infrared (IR) night vision mode for black and white imaging up to 100 meters.
Does this camera have a built-in speaker for two-way audio or a siren?
This camera includes an audio input and output, meaning you can connect an external microphone and speaker for two-way communication. However, it does not have a built-in speaker or siren for active deterrence.
Can the infrared (IR) lights be disabled?
Yes, the infrared illuminators can be controlled. You have options for Zoom Prio, Manual, Auto, or Off, allowing you to disable them if needed for specific scenarios.
Does this camera work with Network Video Recorders (NVRs) from other brands?
Yes, this camera supports ONVIF (Profile S, G, & T), which is a widely adopted standard for IP-based security products. This means it should be compatible with most NVRs and video management systems from other manufacturers that also support ONVIF. For optimal performance and access to all AI features, using a Dahua NVR is recommended.
How long can the SD card record video?
The camera supports a Micro SD card up to 512 GB. The actual recording duration depends on several factors, including the chosen video resolution, compression (H.265 is more efficient than H.264), frame rate, and the amount of motion detected. For continuous recording, 512 GB can store a significant amount of footage, but for extended periods, an NVR or NAS is often preferred.
What makes this camera different from a "Pro" version?
The "Pro" versions of cameras typically offer more advanced features, higher specifications, or enhanced AI capabilities. While the SD4A425DB-HNY is a highly capable camera with WizSense AI features like SMD 3.0 and Auto-tracking 1.0, a "Pro" model might include features like higher optical zoom (e.g., 32x, 45x), additional intelligent functions like AcuPick or advanced facial recognition, more robust hardware, or specialized environmental ratings. This model is designed to offer a strong balance of performance and value for a wide range of applications.
Will the auto-tracking function activate automatically, or do I need to trigger it?
The Auto-tracking 1.0 feature can be triggered both manually or automatically by defined rules. For example, you can set up a Perimeter Protection rule so that if a human or vehicle crosses a virtual line, the camera will automatically begin tracking that target.
Comparison Table
Camera Model Comparison: SD4A425DB-HNY vs. SD49425XB-HNR
Here's a detailed comparison between the newer Dahua SD4A425DB-HNY 4MP 25x Starlight IR WizSense Network PTZ Camera and its predecessor, the Dahua SD49425XB-HNR 4MP 25x Starlight IR WizSense Network PTZ Camera.
| Category |
Newer Model (SD4A425DB-HNY) |
Older Model (SD49425XB-HNR) |
| Model Name/Number |
SD4A425DB-HNY |
SD49425XB-HNR |
| Image Sensor |
1/2.8" 4Megapixel STARVIS™ CMOS |
1/2.8" STARVIS™ CMOS |
| Max. Resolution |
2560 × 1440 (4MP) |
2560 × 1440 (4MP) |
| Optical Zoom |
25× |
25× |
| Min. Illumination (Color) |
0.005lux@F1.6 |
0.005Lux@F1.6 |
| Min. Illumination (B/W) |
0.0005lux@F1.6 |
0.0005Lux@F1.6 |
| IR Distance |
Up to 100 m (328.08 ft) |
100 m (328.08 ft) |
| AI Features |
Auto-tracking 1.0, Perimeter Protection, Face Detection, SMD 3.0
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Auto-tracking, Perimeter Protection, Face Detection, SMD PLUS
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| ROM |
128 MB |
4 GB |
| RAM |
512 MB |
1 GB |
| Focal Length |
5 mm–125 mm |
4.8 mm–120 mm |
| Max. Aperture |
F1.6–F3.6 |
F1.6–F4.0 |
| Field of View (H) |
51.9°–3.0° |
60.0°–2.5° |
| Close Focus Distance |
0.5 m–5 m (1.64 ft–16.40ft) |
0.1 m–1.5 m (0.33 ft–4.92 ft) |
| DORI Detect Distance |
2500 m (8202.10 ft) |
2540 m (8333.33 ft) |
| PTZ Tilt Range |
–5° to +90°, auto flip 180° |
-15° to +90°, auto flip 180° |
| PTZ Manual Control Speed (Pan) |
0.1°/s–240°/s |
0.1°–200°/s |
| PTZ Manual Control Speed (Tilt) |
0.1°/s–160°/s |
0.1°–120°/s |
| Video Frame Rate (Main Stream) |
4M/3M/1080p/1.3M/720p @(1–25/30 fps) |
4MP/3MP/1080P/1.3MP/720P (1–25fps) |
| WDR |
120 dB |
120 dB |
| EIS (Electronic Image Stabilization) |
Yes |
Support |
| Digital Zoom |
16× |
16x |
| Storage (Micro SD) |
512 GB |
256 GB |
| Operating Temperature |
–40 °C to +65 °C (–40 °F to +149 °F) |
-40°C to +70°C (-40°F to +158°F) |
| Power Consumption (Max.) |
21.5 W (illuminator on + fan on + PTZ) |
21W (IR on) |
| Net Weight |
2.5 kg (5.51 lb) |
3 kg (6.61 lb) |
| Product Dimensions |
170.4 mm × Φ171.1 mm (6.71" × Φ6.74") |
Φ160 mm × 295 mm (6.30″ × 11.61″) |
Summary Recommendation
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Choose the newer SD4A425DB-HNY if:
- You prioritize more advanced AI features like SMD 3.0, which typically offers improved accuracy in human and vehicle detection over SMD PLUS.
- A slightly different focal length range and horizontal field of view are a better fit for your specific surveillance needs.
- You require a larger Micro SD card storage capacity (512 GB vs 256 GB) for on-board recording.
- You prefer a lighter and more compact camera for installation.
- Faster manual PTZ control speeds (Pan: 240°/s vs 200°/s; Tilt: 160°/s vs 120°/s) are important for dynamic monitoring.
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The older SD49425XB-HNR might still be suitable if:
- Your budget is a primary concern, as older models are often more cost-effective while still offering robust 4MP 25x PTZ capabilities.
- The existing AI features (SMD PLUS, Perimeter Protection, Face Detection) are sufficient for your security requirements.
- You need slightly more RAM (1 GB vs 512 MB) and ROM (4 GB vs 128 MB) for specific software integrations or future expansions.
- You operate in environments with slightly higher maximum temperatures, as its operating temperature range extends to +70°C.
- A wider horizontal field of view is critical for certain scenarios, even if the overall range is slightly different.
