This Dahua WizSense network camera provides robust outdoor surveillance with smart detection capabilities, designed to accurately identify and deter intruders. It offers clear, high-definition video day and night, making it an ideal choice for securing properties where proactive defense and reliable monitoring are essential. Its built-in active deterrence features help to scare off potential threats before they escalate.
Key Features
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Smart Dual Light – Enjoy full-color video capture in low-light conditions when a target is detected, switching to invisible IR illumination when the area is clear, reducing light pollution.
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Active Deterrence – Deter unwelcome visitors with integrated red and blue flashing lights and a loud, customizable siren directly from the camera, acting as an immediate warning.
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Accurate AI Detection (SMD 4.0) – Focus on real threats with advanced AI that distinguishes between humans and vehicles, significantly reducing false alarms from animals or environmental factors.
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Two-Way Talk – Communicate directly through the camera with its built-in dual microphones and speaker, allowing for remote interaction with visitors or intruders.
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Flexible Storage Options – Store recordings locally on a Micro SD card up to 512 GB, or remotely to an FTP/SFTP server or Network Attached Storage (NAS) for reliable backup.
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Enhanced Image Quality (WDR 120dB) – Capture clear details in challenging lighting conditions, such as strong backlighting, thanks to Wide Dynamic Range technology.
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Perimeter Protection – Set up virtual tripwires and intrusion zones to trigger alarms and deterrence actions when people or vehicles cross predefined boundaries.
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Weatherproof Durability (IP67) – Install the camera with confidence in various outdoor environments, as it is fully protected against dust and can withstand immersion in water.

Perfect For:
- Home driveways and entry points
- Small business storefronts and perimeters
- Warehouse loading docks
- Parking lot surveillance
- Backyard and garden security
- Farm and rural property monitoring
Installer Tips
Mounting Height: For optimal human/vehicle detection and DORI distances, refer to the installation manual for recommended mounting heights and angles specific to your detection needs.
PoE Advantage: Utilize Power over Ethernet (PoE) for simpler installation, requiring only a single Ethernet cable for both power and data transmission, reducing cabling complexity.
Lens Adjustment: Take advantage of the motorized vari-focal lens to remotely adjust the focal length (zoom) and focus after installation, optimizing the field of view for your specific monitoring area without needing to physically access the camera.
Pairing with NVRs: For advanced AI functions like AcuPick and Smart Search, pair this camera with a compatible Dahua Smart NVR or AI NVR.
Custom Audio Alerts: Prepare custom voice files for the active deterrence siren. These can be uploaded through the camera's web interface or management software to provide specific warnings.
Optimal Placement for Deterrence: Position the camera where the red and blue lights and siren can be most effective, such as near entry points, windows, or vulnerable perimeter areas.
Downloads
Quick-Read Specs
Feature
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Detail |
Resolution
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8MP (3840 × 2160) @ 25/30 fps
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Lens Options
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Motorized Vari-focal 2.7 mm–13.5 mm
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Night Vision
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IR (up to 50m) & Warm Light (up to 40m) Smart Dual Light
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Deterrence
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Red & Blue Lights + Siren (customizable voice)
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AI Features
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SMD 4.0, Intrusion, Tripwire, AI SSA, AcuPick (with compatible NVR)
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| Audio |
Built-in Dual Mic + Built-in Speaker (Two-Way Talk)
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Storage
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Micro SD card up to 512 GB, FTP, SFTP, NAS
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| Power |
12 VDC / PoE (802.3af)
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Weather Rating
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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 Clear Night Vision
The IPC-HDW3849H-ZAS-PV features Smart Dual Light technology, providing intelligent illumination for round-the-clock surveillance. At night, the camera typically uses its IR illuminator, which is invisible to the human eye, to capture clear black and white footage. However, when the camera's intelligent algorithms detect a human or vehicle within the monitoring area, it automatically activates its warm white light. This allows the camera to record full-color video of the event, capturing crucial details like clothing color or vehicle make. Once the detected target leaves the area, the white light turns off, and the camera reverts to IR mode, efficiently reducing light pollution and maintaining a discreet presence. This dynamic lighting system ensures you get the most informative video when it matters most, without unnecessary constant bright illumination.
SMD 4.0: Precision Motion Detection
Dahua's Smart Motion Detection (SMD) 4.0 is a significant upgrade in intelligent surveillance. Unlike traditional motion detection that can trigger alarms from rustling leaves, changing light, or passing animals, SMD 4.0 leverages advanced deep learning algorithms. It specifically differentiates between human and vehicle targets and other moving objects. This drastically reduces false alarms, saving you time and ensuring that only relevant events generate notifications. You can trust that when your camera alerts you to motion, it's a person or vehicle that truly requires your attention. The SMD area can also be precisely set, even within warm light illumination zones, to further refine alarm triggering.
AcuPick: Rapid Evidence Retrieval
AcuPick is a powerful feature that works in conjunction with compatible Dahua back-end devices (like Smart NVRs). It uses deep learning to quickly and accurately match targets, such as people and motor vehicles, across live and recorded video. This means you can swiftly search through hours of footage to locate specific incidents involving a person or vehicle, dramatically accelerating the process of finding crucial evidence. AcuPick transforms video review from a tedious manual task into an efficient, AI-powered operation.
AI Scene Self-Adaption (AI SSA): Consistently Optimal Images
The AI Scene Self-Adaption (AI SSA) function ensures your camera consistently delivers the best possible image quality regardless of environmental conditions. By employing deep learning algorithms, AI SSA intelligently analyzes the scene and automatically adjusts various image parameters, such as exposure, white balance, and noise reduction. Whether it's a bright sunny day, a foggy morning, or a low-light night, the camera adapts its settings to produce clear, vivid, and highly detailed images, minimizing the need for manual adjustments and ensuring reliable monitoring performance.
Active Deterrence: Stopping Threats in Their Tracks
The IPC-HDW3849H-ZAS-PV features robust active deterrence capabilities designed to prevent incidents before they happen. Upon detection of an intrusion or tripwire event by a human or vehicle, the camera can immediately activate its prominent red and blue flashing lights. Simultaneously, a powerful siren can sound. The camera comes with multiple pre-recorded voices for the siren, and importantly, it supports customized voice importing. This allows you to upload specific warnings or messages, providing a tailored and highly effective deterrent that can surprise and scare away potential threats, notifying them that they are being monitored. This proactive approach significantly enhances security.
Seamless Integration with Management Software and Mobile Apps
This camera offers comprehensive integration options, making it easy to manage and monitor your surveillance system. It is fully compatible with Dahua's SmartPSS Lite and DSS management software for desktop users, providing robust control and viewing capabilities. For on-the-go access, the DMSS mobile client for iOS and Android allows you to view live feeds, receive alarm notifications, engage in two-way talk, and even perform one-tap arming/disarming directly from your smartphone or tablet. This seamless integration ensures you have control over your security, anytime, anywhere.
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, the IPC-HDW3849H-ZAS-PV features Smart Dual Light technology. While it typically uses invisible IR light at night (for black and white video), when it detects a human or vehicle, it automatically activates its warm white light to record in full color, capturing more detail.
Q2: How loud is the built-in speaker for the siren?
A2: The exact decibel level of the speaker is not specified, but it's designed to be a prominent and effective deterrent. It's loud enough to grab attention and signal an alarm, especially in quiet environments.
Q3: Can the red and blue lights or siren be disabled if I don't want active deterrence?
A3: Yes, the active deterrence features (sound and light alarms) can be configured and disabled through the camera's web interface or management software like DMSS, SmartPSS Lite, or DSS. You have full control over when and if these features activate.
Q4: Does this camera work with Network Video Recorders (NVRs) from other brands?
A4: Yes, the camera supports ONVIF (Profile S, Profile G, Profile T) and CGI protocols, which are industry standards for IP camera interoperability. This means it should be compatible with many third-party NVRs that also support these standards, though specific advanced AI features might work best with Dahua NVRs.
Q5: How long can the 512 GB Micro SD card record for?
A5: The recording duration depends on several factors, including the video resolution, compression (H.265 is more efficient), frame rate, and the amount of motion detected. For continuous recording at 8MP, 512GB can store several days to over a week of footage. With intelligent recording based on motion detection or AI events, the storage duration can be significantly extended.
Q6: What makes this WizSense camera different from a standard fixed-lens camera?
A6: This WizSense camera offers several key differentiators. It features a motorized vari-focal lens for flexible viewing angles, Smart Dual Light for intelligent color night vision, and advanced AI capabilities like SMD 4.0 for precise human/vehicle detection. The active deterrence (red/blue lights + siren) and two-way talk are also premium features often not found in standard fixed-lens models, providing proactive security.
Q7: Will the siren and lights activate automatically every time motion is detected?
A7: No, you can configure the alarm events that trigger the siren and lights. For example, you can set them to activate specifically for human or vehicle intrusion/tripwire events (using SMD 4.0) while ignoring general motion from pets or environmental factors, ensuring more relevant alerts. You can also use the one-tap disarming function via the mobile app.
Comparison Table
Dahua 8MP TiOC Eyeball Cameras: Vari-focal vs. Fixed-Focal Generations
| Category |
IPC-HDW3849H-ZAS-PV (Latest Vari-focal S5 Series) |
DH-IPC-HDW3849H-AS-PV-ANZ-S2 (Older Fixed-focal) |
DH-IPC-HDW3849H-AS-PV-PRO-ANZ (Fixed-focal Pro Version) |
| Lens Type |
Motorized Vari-focal (2.7 mm–13.5 mm) |
Fixed-focal (2.8 mm; 3.6 mm options) |
Fixed-focal (2.8 mm; 3.6 mm options) |
| Image Sensor |
1/2.8" CMOS |
1/2.7" CMOS |
1/1.8" CMOS |
| Max. Resolution |
8 MP (3840 × 2160)@25/30 fps |
8 MP (3840 × 2160)@25/30 fps |
8 MP (3840 × 2160)@25/30 fps |
| Min. Illumination (Color) |
0.004 lux@F1.0 (Color) |
0.004 lux@F1.0 (Color) |
0.0008 lux@F1.0 (Color) |
| IR Illumination Distance |
Up to 50 m (164.64 ft) |
Up to 30 m (98.43 ft) |
Up to 30 m (98.43 ft) |
| Warm Light Distance |
Up to 40 m (131.23 ft) |
Up to 30 m (98.43 ft) |
Up to 30 m (98.43 ft) |
| Illuminator Number |
2 (IR LED); 2 (Warm light) |
1 (IR LED); 1 (Warm light) |
2 (Multi-core IR + Warm light) |
| ROM / RAM |
256 MB / 2 GB |
128 MB / 512 MB |
128 MB / 512 MB |
| Field of View (Wide Angle) |
H: 108° (at 2.7mm) |
H: 106° (at 2.8mm) |
H: 109° (at 2.8mm) |
| DORI Distance (Wide Lens) - Detect |
89.9 m (2.7 mm) |
91.0 m (2.8 mm) |
82 m (2.8mm) / 100m (3.6mm) |
| DORI Distance (Tele Lens) - Detect |
257.4 m (13.5 mm) |
N/A (Fixed-focal) |
N/A (Fixed-focal) |
| SMD Version |
SMD 4.0 |
SMD 4.0 |
SMD 4.0 |
| AI Functions |
Intrusion, Tripwire (Human/Vehicle classification), AcuPick, AI SSA, Smart Search |
Intrusion, Tripwire (Human/Vehicle classification), AcuPick, AI SSA, One-tap Disarming |
Same as S2 + Face Detection (Full Image), Loitering Detection, AI-ISP
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| Smart Dual Light |
Yes, with smart algorithm for target detection (IR on normally, warm light on for target) |
Yes, with smart algorithm for target detection (IR on normally, warm light on for target) |
Smarter detection-triggered light switching with synced AI events |
| Built-in Audio |
Dual Mic, 1-ch Speaker (Two-way talk) |
Dual Mic, Speaker (Two-way talk) |
Dual Mic, Speaker (Two-way talk) |
| Max. Micro SD Card |
Up to 512 GB |
Up to 256 GB |
Up to 512 GB |
| Privacy Masking |
4 areas |
4 areas |
8 areas |
| Cybersecurity |
Video/firmware/config encryption, Digest, WSSE, account lockout, security logs, IP/MAC filtering, X.509 cert, syslog, HTTPS, 802.1x, trusted boot/execution/upgrade |
Security authentication and authorization, access control protocols, trusted protection, encrypted transmission and encrypted storage |
Trusted boot, trusted upgrade, execution control (more robust) |
| Power Consumption (Max) |
12.1 W (PoE) |
10.1 W (PoE) |
10 W (PoE) |
| Power Failover |
Not explicitly stated, but 12VDC/PoE supply is standard |
Not specified |
Yes – 12VDC & PoE failover |
| Product Dimensions |
127.6 mm × Φ122.0 mm |
Φ122 × 110.9 mm |
Φ122 × 116.1 mm |
The IPC-HDW3849H-ZAS-PV (S5 series) is clearly a more advanced model, primarily due to its motorized vari-focal lens offering flexible viewing angles and zoom, a larger RAM/ROM, and higher illumination distances compared to the older fixed-focal S2 model.
The DH-IPC-HDW3849H-AS-PV-PRO-ANZ (fixed-focal Pro) distinguishes itself with a significantly larger image sensor (1/1.8" CMOS) for superior low-light performance, along with enhanced AI features like Face Detection, improved smart dual light, and more advanced cybersecurity measures.
If you need the flexibility of adjusting the focal length after installation or during monitoring, the IPC-HDW3849H-ZAS-PV is the clear choice. If a fixed lens is acceptable and your priority is superior low-light color image quality and advanced AI features within a fixed field of view, the PRO fixed-focal model offers some compelling advantages.