The DH-IPC-HFW3849T1-AS-PV-ANZ is an 8MP outdoor bullet camera from Dahua's WizSense series, designed to intelligently secure properties by focusing on human and vehicle detection. It actively deters intruders with sound and light alarms, making it ideal for proactive security. This camera delivers clear, high-definition images and offers smart features for reliable, easy-to-manage surveillance in various environments.
Key Features
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Active Deterrence: Ward off unwanted visitors with integrated red and blue lights and a customizable siren directly from the camera.
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Smart Dual Illuminators: Get full-color video of events when a target is detected at night, otherwise, it uses discreet IR to reduce light pollution.
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SMD 4.0 (Smart Motion Detection): Experience fewer false alarms as the camera accurately distinguishes between people, vehicles, and irrelevant movements like animals or swaying branches.
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Two-Way Talk: Communicate directly through the camera with built-in dual microphones and a speaker, perfect for interacting with visitors or warning intruders.
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IP67 Weather Protection: Rely on robust performance in all weather conditions, as the camera is fully protected against dust and water immersion.
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One-tap Disarming: Easily arm or disarm alarm linkages via a mobile app, providing flexible control over your security system.
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Perimeter Protection: Set up virtual tripwires and intrusion zones for accurate detection and classification of humans and vehicles, reducing unnecessary alerts.
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Flexible Storage: Store recordings directly on a Micro SD card up to 256GB, or use FTP/SFTP and NAS for network storage.
Perfect For:
- Residential Home Security
- Small Business Entrances
- Parking Lots
- Perimeter Fences
- Building Exteriors
- Driveways and Gateways
Installer Tips
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Optimal Placement for Deterrence: Install the camera at a height of 2.5–3 meters (8–10 feet) to ensure the integrated red and blue lights are visible and the siren is effective for active deterrence.
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Lens Selection: For wider areas like driveways or yards, choose the 2.8mm lens for a broader field of view (106° horizontal). If you need to focus on a narrower entry point or specific corridor, the 3.6mm lens (85° horizontal) will provide more detail.
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PoE Advantage: Utilize Power over Ethernet (PoE) for simplified installation, as it delivers both power and data through a single Ethernet cable, reducing cabling complexity.
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Pairing with AI NVR: For advanced features like Quick Pick (fast searching of human/vehicle targets) and Smart Search, pair this WizSense camera with a compatible Dahua AI NVR. This unlocks the full potential of its AI capabilities.
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Customizing Voice Prompts: Take advantage of the ability to upload customized voice alerts for the siren. This can be more effective than generic sirens for specific applications, such as "Warning: This area is under surveillance."
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Weather Protection: While IP67 rated, ensure all cable connections are properly sealed with a waterproof junction box (like the optional PFA135 or PFA130-E) to maintain the integrity of the weatherproofing, especially in outdoor environments with heavy rain.
Downloads
Quick-Read Specs
| Feature |
Specification |
| Resolution |
8 Megapixel (3840 x 2160) |
| Lens Options |
2.8 mm, 3.6 mm |
| Night Vision Type |
IR and Warm Light (Smart Dual Illuminators) |
| Night Vision Range |
30 m (98.43 ft) for both IR and Warm Light |
| Deterrence |
Red/Blue Strobe Lights + Siren |
| AI Features |
SMD 4.0, Perimeter Protection, Quick Pick, AI SSA |
| Audio |
Built-in Dual Mics + 1-ch Speaker (Two-Way Talk) |
| Storage |
Supports up to 256 GB Micro SD Card |
| Power |
12V DC / PoE (802.3af) |
| Weather Rating |
IP67 |
What is TIOC?
TiOC stands for Three-in-One Camera, combining Full-Colour Video, Active Deterrence, and AI Detection into one powerful security solution.
With TiOC cameras, you get:
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Full-Colour Footage 24/7 – even at night, thanks to Smart Dual Illuminators.
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Smart AI Detection – accurately identifies humans and vehicles, filtering out false
alarms caused by animals, trees, or shadows.
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Active Deterrence – red and blue warning lights plus a loud siren to stop intruders in their tracks.
These features work together to give you fast, accurate alerts and clear footage any time of day.
How Does It Work?
1. Full-Colour Night Vision with Smart Dual Illuminators
TiOC cameras automatically switch between infrared and LED lighting. When no threat is detected, they use discreet IR. When a person or vehicle enters the scene, the LED lights activate to record in full colour—helping you capture every detail clearly.
2. AI-Powered Detection
Using SMD 4.0 (Smart Motion Detection) and Perimeter Protection, the camera can tell the difference between a person, vehicle, animal, or object. This means:
- You get alerts only when it matters.
- False alarms are reduced to less than 1%.
3. Active Deterrence
When a genuine threat is detected, the camera activates built-in red and blue strobe lights along with a loud audible siren to immediately deter intruders. This proactive response helps prevent incidents before they occur. Users can schedule deterrence features to operate during specific hours—such as overnight—or customise them to suit their needs. For added convenience, a one-touch disarm function allows quick cancellation of the siren when necessary.
Extra Info
Smart Dual Illumination for Enhanced Night Vision
This camera features Dahua's innovative Smart Dual Illuminators technology. At night, it typically uses invisible IR illumination to capture clear black and white video, minimizing light pollution. However, when a human or vehicle is detected within the monitoring area, the camera automatically switches on its warm light, instantly capturing full-color video of the event. This means you get crucial details like vehicle color or clothing, which are often missed in traditional black and white IR footage. Once the target leaves the area, the warm light turns off, and the IR illuminator takes over again, balancing effective surveillance with energy efficiency and reduced light spill.
SMD 4.0: Intelligent Motion Detection with Fewer False Alarms
The SMD 4.0 (Smart Motion Detection) technology uses advanced deep learning algorithms to significantly improve the accuracy of motion detection. Unlike older systems that trigger alarms for every movement, SMD 4.0 can accurately classify targets as human or vehicle, filtering out irrelevant movements from animals, rain, leaves, or even strong winds. This drastically reduces false alarms, saving you time and ensuring you only receive alerts for what truly matters, making your security monitoring much more efficient and reliable.
Active Deterrence: Beyond Just Recording
This camera doesn't just record incidents; it actively works to prevent them. With its Siren and Light Active Deterrence function, the camera can emit a loud siren and flash bright red and blue lights when an intrusion or tripwire event is detected. This immediate and noticeable response can often be enough to scare away potential intruders before they cause any damage or gain entry. The ability to customize the voice alerts also adds a layer of personalization, allowing you to deliver specific warnings or messages.
Quick Pick with AI NVR for Rapid Evidence Retrieval
When paired with a Dahua AI NVR, the camera's SMD 4.0 technology is supercharged with Quick Pick. This intelligent search function allows you to quickly sift through vast amounts of recorded video to find specific human and vehicle targets from SMD events. Instead of manually reviewing hours of footage, Quick Pick prioritizes the highest matches, enabling you to rapidly locate and extract the exact moments you need for evidence, saving critical time during investigations.
AI Scene Self-Adaption (SSA) for Optimal Image Quality
The AI Scene Self-Adaption (SSA) feature uses deep learning algorithms to intelligently adjust the camera's image parameters to suit varying environmental conditions. Whether it's bright daylight, low light, or challenging backlighting, SSA dynamically optimizes settings like exposure, gain, and white balance to ensure consistent, high-quality images. This means you get clear, detailed footage without needing manual adjustments, regardless of the time of day or changing weather.
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
Q: Can this camera record in color at night?
A: Yes, it can! The camera uses Smart Dual Illuminators. While it typically uses invisible IR at night for black and white video, it automatically switches to warm white light to capture full-color video when it detects a human or vehicle within its monitoring area.
Q: How loud is the built-in speaker?
A: The camera's built-in speaker is designed for effective two-way talk and siren deterrence. While specific decibel levels aren't provided, it's loud enough to clearly communicate with someone near the camera or to deliver an audible warning siren to deter intruders.
Q: Can the red and blue deterrence lights be disabled?
A: Yes, the siren and light alarm features can be configured or disabled through the camera's settings via the management software or mobile app. This gives you control over when and how the active deterrence functions.
Q: Does this camera work with NVRs from other brands?
A: This camera is ONVIF (Profile S/G/T) compliant, which means it should be compatible with many third-party NVRs that also support ONVIF. However, to utilize all of its advanced AI features like Quick Pick and some of the more integrated smart functions, pairing it with a Dahua AI NVR is recommended.
Q: How long will a 256GB SD card record?
A: The recording duration on a 256GB Micro SD card depends on several factors, including the resolution, frame rate, compression (H.265 is very efficient), and the amount of motion detected. For an 8MP camera recording motion-activated events with H.265 compression, a 256GB card can store several days to weeks of footage, but continuous recording at maximum quality will fill it much faster.
Q: What makes this WizSense camera different from a standard IP camera?
A: The key difference is its WizSense AI technology. This series uses an independent AI chip and deep learning algorithms to provide highly accurate human and vehicle detection (SMD 4.0, Perimeter Protection), reducing false alarms significantly compared to standard motion detection. It also enables advanced features like Smart Dual Illumination and integration with AI NVRs for Quick Pick.
Q: Will the siren activate automatically when motion is detected?
A: Yes, the siren and light alarm can be configured to activate automatically when specific events occur, such as intrusion, tripwire detection (classified as human or vehicle), or other alarm events you set up. You have full control over the conditions that trigger the alarm.
Dahua Camera Comparison
Comparing: DH-IPC-HFW3849T1-AS-PV-ANZ vs. DH-IPC-HFW3841T-ZAS
| Category |
Newer Model (DH-IPC-HFW3849T1-AS-PV-ANZ) |
Older Model (DH-IPC-HFW3841T-ZAS) |
| Model Name |
8MP Smart Dual Illumination Active Deterrence Fixed-focal Bullet WizSense Network Camera |
8MP IR Vari-focal Bullet WizSense Network Camera |
| Image Sensor |
1/2.8" CMOS |
1/2.8" CMOS |
| Max. Resolution |
8 MP (3840 × 2160) @25/30 fps |
8 MP (3840 × 2160) @20 fps (AI enabled), @25/30 fps (AI disabled) |
| Lens Type |
Fixed-focal (2.8 mm; 3.6 mm options) |
Motorized Vari-focal (2.7 mm–13.5 mm) |
| Illumination Type |
Smart Dual Illuminators (IR and Warm Light) |
IR LED only |
| Illumination Distance |
30 m (98.43 ft) for both IR and Warm Light |
60 m (197 ft) for IR |
| Min. Illumination (Color) |
0.004 lux@F1.0 (Color, 30 IRE) |
0.007 lux@F1.5 (Color, 30IRE) |
| Active Deterrence |
Red/Blue Strobe Lights + Siren (with customizable voice) |
None |
| AI Features |
SMD 4.0, Perimeter Protection, Quick Pick, AI SSA |
SMD Plus (equivalent to SMD 4.0), Perimeter Protection, AI SSA, Quick Pick |
| Audio |
Built-in Dual Mics + 1-ch Speaker (Two-Way Talk) |
Built-in Mic (for -ZAS models only), 1-ch Speaker (for -ZAS models only), Two-Way Talk |
| Storage |
Supports up to 256 GB Micro SD Card |
Supports up to 256 GB Micro SD Card |
| Power Supply |
12V DC / PoE (802.3af) |
12V DC / PoE (802.3af) |
| Weather Rating |
IP67 |
IP67 |
| DORI Distance (2.8mm/W) |
Detect: 91.0 m; Observe: 36.4 m; Recognize: 18.2 m; Identify: 9.1 m |
Detect: 88.3 m; Observe: 35.3 m; Recognize: 17.7 m; Identify: 8.8 m |
| Dimensions (L × W × H) |
288.4 mm × 94.4 mm × 84.7 mm |
244.1 mm × 79.0 mm × 75.9 mm |
Summary Recommendation
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Choose the DH-IPC-HFW3849T1-AS-PV-ANZ (Newer Model) if:
- You require **active deterrence** with red/blue strobe lights and a siren for immediate threat response.
- You prioritize **Smart Dual Illumination** for full-color video during detected events at night, reducing constant warm light pollution.
- You need slightly better low-light color performance (0.004 lux).
- A fixed-focal lens (2.8mm or 3.6mm) meets your field of view requirements.
- You desire the very latest AI enhancements with SMD 4.0, Quick Pick, and AI SSA.
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Consider the DH-IPC-HFW3841T-ZAS (Older Model) if:
- Active deterrence is not a primary requirement for your surveillance needs.
- You need a **motorized vari-focal lens** for flexible adjustment of focal length and field of view after installation, or for specific long-range IR illumination (60m).
- You are on a tighter budget, as older models are often more cost-effective.
- Primarily IR night vision is sufficient for your application, and consistent full-color night vision isn't essential.
- You still benefit from advanced AI features like SMD Plus and Perimeter Protection found in the WizSense series.
