The Dahua SDZW2030U-SL offers a robust solution for long-distance surveillance in demanding outdoor environments. Equipped with powerful optical zoom and advanced low-light technology, it delivers clear video footage even in challenging lighting conditions. Its durable, anti-corrosion design makes it ideal for harsh settings where standard cameras might fail.
Key Features
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30x Optical Zoom: Capture detailed footage of distant subjects without losing clarity, essential for large areas.
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Starlight Technology: See vivid color images in extremely low light, extending surveillance capabilities beyond traditional infrared.
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Wide Dynamic Range (120 dB): Get balanced, clear images in scenes with both very bright and very dark areas, such as entrances or sun-drenched locations.
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Smart H.265+ Compression: Reduce video file sizes by up to 70% without compromising quality, saving on storage and bandwidth.
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PFA Technology: Enjoy fast and precise auto-focusing even while zooming, ensuring crisp images instantly.
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Extreme Weather Performance: Rely on continuous operation in temperatures from -40°C to +70°C and 95% humidity, built for resilience.
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IP68 Ingress Protection: Experience complete protection against dust and water immersion, making it suitable for marine or industrial use.
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6KV Lightning Protection: Safeguard the camera and its infrastructure from electrical surges, ensuring long-term reliability.

Perfect For:
- Coastal and marine environments
- Industrial plants and factories
- Chemical processing facilities
- Oil and gas exploration sites
- Large perimeters and critical infrastructure
- Any location requiring high resistance to corrosion and extreme weather
Installer Tips
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Optimal Mounting: Due to its powerful zoom, mount the camera at a height that provides a clear, unobstructed line of sight to the areas of interest for maximum coverage.
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PoE+ Advantage: Utilize PoE+ for simplified installation, delivering both power and data over a single Ethernet cable, reducing cabling complexity.
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Network Planning: For optimal performance with 30x zoom and 1080P resolution, ensure your network infrastructure can handle the bit rate (448K ~ 8192Kbps for H.265/H.264).
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Corrosion Resistance: When installing in highly corrosive environments, use appropriate stainless steel mounting hardware (like the optional EXB109 wall mount) to match the camera's 316L stainless steel casing.
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Power Redundancy: Consider using both AC24V/DC12V options along with PoE+ if power stability is a concern in your outdoor application.
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Field of View Consideration: While the 30x zoom offers a narrow 2.4° angle of view at full zoom, remember the wide end (67.8°) for initial setup and broader coverage.
Downloads
Quick-Read Specs
| Feature |
Specification |
| Resolution |
2MP (1920x1080) |
| Lens Type |
4.5mm~135mm (30x Optical Zoom) |
| Night Vision |
IR up to 100m (328ft) with Starlight Technology |
| Deterrence |
N/A |
| AI Features |
IVS (Tripwire, Intrusion, Abandoned/Missing), Face Detection, Heat Map |
| Audio |
1/1 Audio I/O (Compression: G.711a/Mu, AAC, etc.) |
| Storage |
Micro SD card up to 128GB, NAS, Local PC |
| Power |
AC24V/DC12V/PoE+ (802.3at) |
| Weather Rating |
IP68 |
Extra Info
Starlight Technology for True Color in Darkness
The DH-SDZW2030U-SL excels in low-light conditions thanks to its Starlight Technology. This isn't just about seeing in the dark; it's about capturing detailed, color-rich images even when ambient light levels drop as low as 0.005 lux. Unlike traditional infrared cameras that switch to black and white, Starlight optimizes light sensitivity through advanced optical features and image processing, providing more informative and vivid surveillance footage after dusk. This means you can distinguish vehicle colors, clothing details, and other critical information that might be lost with standard night vision.
Advanced Focus with PFA Technology
PFA (Predictive Focus Algorithm) Technology significantly enhances the user experience, especially when using the powerful 30x optical zoom. This isn't just a simple autofocus; it's an intelligent system that predicts and precisely adjusts the lens focus during zooming. The benefit to the user is instantaneous image clarity throughout the zoom process, eliminating blurry transitions and shortening the time it takes to get a sharp image of a distant target. This precision focusing is crucial for critical surveillance operations where every second counts.
Robust Environmental Adaptability
This camera is engineered for resilience. Its IP68 rating means it's completely sealed against dust and can withstand continuous immersion in water, making it suitable for direct exposure to the elements, including heavy rain or even underwater applications if necessary. Furthermore, its ability to operate reliably in extreme temperatures from -40°C to +70°C, combined with 95% humidity tolerance, ensures consistent performance in diverse and challenging climates, from freezing cold to scorching heat and high moisture. The 316L stainless steel construction provides superior resistance to corrosion, which is vital for coastal, industrial, or chemical environments.
Smart H.265+ for Efficient Surveillance
The inclusion of Smart H.265+ compression technology provides substantial practical benefits for long-term surveillance operations. By intelligently optimizing the standard H.265 codec, this camera drastically reduces the bit rate and storage requirements—by up to 70% compared to standard H.265. This is achieved through scene-adaptive encoding, dynamic GOP (Group of Pictures), dynamic ROI (Region of Interest), and intelligent noise reduction. For users, this translates directly into significant cost savings on storage devices and reduced bandwidth consumption, making high-resolution, continuous recording more feasible and efficient without compromising video quality.
Intelligent Video System (IVS) Capabilities
Beyond basic motion detection, the DH-SDZW2030U-SL integrates advanced IVS features, providing a higher level of intelligent surveillance. Functions like Tripwire and Intrusion detection allow you to define specific virtual lines or areas, triggering alerts when they are crossed or entered by a person or vehicle. Abandoned/Missing object detection can identify items left behind or removed from a scene, which is useful for security in public spaces. Face detection can help identify the presence of faces in the scene, which can be used for various applications including access control or analytical purposes. These features empower users to gain more actionable insights from their surveillance footage and respond proactively to security events.
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
Q1: Can this camera record in color at night?
A1: Yes, thanks to its Starlight Technology, the DH-SDZW2030U-SL can capture color details in low light conditions down to 0.005 lux. In complete darkness, it will use its IR illuminators and record in black and white.
Q2: What kind of environments is this camera specifically designed for?
A2: This camera is explicitly designed for extreme and corrosive outdoor environments, such as coastal areas, industrial plants, chemical facilities, or any location requiring robust protection against dust, water, and harsh temperatures.
Q3: Does this camera have built-in audio capabilities?
A3: Yes, it has 1 audio input and 1 audio output, allowing for two-way audio communication if connected to external microphone and speaker devices.
Q4: How much local storage can this camera support?
A4: The camera supports a Micro SD card up to 128GB for local edge storage. It also supports recording to NAS (Network Attached Storage) and local PCs.
Q5: Can this camera integrate with NVRs (Network Video Recorders) from other brands?
A5: Yes, the camera conforms to ONVIF (Open Network Video Interface Forum) and PSIA (Physical Security Interoperability Alliance) specifications, ensuring interoperability with network video products from various manufacturers.
Q6: What is the maximum distance the infrared (IR) night vision can reach?
A6: The IR distance for night vision on this camera is up to 100 meters (328 feet).
Q7: How does PFA Technology benefit my surveillance?
A7: PFA Technology ensures that the image remains clear and in focus throughout the entire zooming process, and it significantly shortens the time it takes for the camera to achieve focus. This means you get sharp, usable footage instantly, even when rapidly zooming in on distant objects.
Q8: Is it difficult to install this camera due to its specialized features?
A8: While it's a professional-grade camera, its power options (PoE+, AC24V, DC12V) and adherence to industry standards like ONVIF simplify integration. For optimal performance in demanding environments, professional installation is recommended, especially for wiring and ensuring proper sealing against the elements.
Comparison Table
Dahua Anti-corrosion IR Network Cameras
| Category |
Newer Model (DH-SDZW2030U-SL) |
Older Model (DH-SDZW2030-SL) |
| Model Name/Number |
DH-SDZW2030U-SL |
DH-SDZW2030-SL (Estimated Predecessor) |
| Image Sensor |
1/2.8” STARVIS™ CMOS |
1/2.8” CMOS (Likely, potentially older generation) |
| Effective Pixels |
1920(H) x 1080(V), 2 Megapixels |
1920(H) x 1080(V), 2 Megapixels |
| Optical Zoom |
Powerful 30x optical zoom |
Powerful 30x optical zoom |
| Minimum Illumination |
Color: 0.005Lux@F1.6; 0Lux@F1.6 (IR on) |
Color: 0.05Lux@F1.6 (Likely higher, common in older models without advanced Starlight) |
| Starlight Technology |
Yes (Ultra-low Light Technology, 0.005 lux) |
Likely Standard Starlight (less sensitive, e.g., 0.05 lux or 0.01 lux) |
| Video Compression |
H.265+/H.265/H.264+/H.264 |
H.264+/H.264 (Commonly, H.265+ is a newer enhancement) |
| Smart Codec |
Smart H.265+ (Reduces bit rate and storage by up to 70%) |
Smart H.264+ (Less efficient than H.265+) |
| Max. Frame Rate |
Max. 50/60fps@1080P |
Max. 25/30fps@1080P (Typical for older models before higher frame rate adoption) |
| Wide Dynamic Range (WDR) |
True WDR (120 dB) |
True WDR (120 dB) or Digital WDR (DWDR) |
| IR Distance |
Up to 100m (328ft) |
Up to 100m (328ft) |
| Intelligent Video System (IVS) |
Tripwire, Intrusion, Abandoned/Missing, Face Detection, Heat Map |
Tripwire, Intrusion (Often fewer advanced IVS features) |
| PFA Technology |
Yes (Advanced focusing algorithms, shortens focus time) |
Unlikely or less advanced focusing capabilities |
| Electronic Image Stabilization (EIS) |
Support |
Might not be supported or less effective |
| Ingress Protection |
IP68 |
IP68 |
| Casing Material |
316L Stainless steel |
316L Stainless steel |
| Operating Conditions |
-40°C ~ 70°C (-40°F ~ +158°F) |
-40°C ~ 70°C (-40°F ~ +158°F) |
| Edge Storage |
Micro SD card 128GB |
Micro SD card 64GB (Often capacity limit in older models) |
| Power Supply |
AC24V(optional)/DC12V(optional)/PoE+(802.3at) |
AC24V(optional)/DC12V(optional)/PoE (Likely standard PoE, not PoE+) |
| DORI Distance (Detect) |
1862m (6109ft) |
Similar, but exact figures might vary slightly due to minor sensor/lens optimizations. |
Summary Recommendation
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Choose the DH-SDZW2030U-SL (Newer Model) if:
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Low-light performance is critical, especially color details in extremely dim conditions, due to enhanced Starlight technology.
- You require higher frame rates (up to 60fps) for smoother video capture, particularly for fast-moving objects.
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Bandwidth and storage efficiency are paramount, benefiting from Smart H.265+ compression.
- You need more advanced Intelligent Video System (IVS) features like Face Detection and Heat Map.
- Rapid and accurate focusing is important, supported by the PFA Technology and EIS.
- Future-proofing and accessing the latest advancements in surveillance technology are priorities.
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The DH-SDZW2030-SL (Older Model) might still be suitable if:
- Your budget is a primary constraint, and a slightly older generation offers cost savings.
- Your surveillance needs are basic, and the core features like 2MP resolution, 30x zoom, and 100m IR distance are sufficient.
- You already have an infrastructure optimized for H.264 and do not require the latest compression efficiencies.
- Advanced analytics like Face Detection or Heat Map are not essential for your application.