The Dahua DH-IPC-HFW3849T1-ZAS-PV-ANZ-S2 is an advanced 8MP WizSense bullet camera designed for 24/7 surveillance with AI analytics, full-color night vision, and active deterrence. Featuring Smart Dual Light technology, two-way audio, and intelligent event detection, it provides reliable protection for residential, commercial, and public security applications.
Key Features
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8MP Ultra-HD Imaging: Delivers crisp 3840 × 2160 video at 25/30 fps using a 1/2.8″ CMOS sensor with low-light sensitivity.
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Efficient AI Coding: Supports H.265, Smart H.264+/H.265+, and AI H.264/H.265 for reduced bandwidth and storage usage.
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Smart Dual-Light Illumination: IR up to 50 m and warm light up to 40 m with automatic switching for full-color video when people or vehicles are detected.
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Motorized Vari-focal Lens (2.7–13.5 mm, F1.0): Remote zoom provides wide-area coverage or detailed close-up views.
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AI Video Analytics: WizSense functions include SMD 4.0, perimeter protection (tripwire/intrusion), AcuPick, and AI SSA.
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Active Deterrence: Built-in red/blue strobe lights and siren with customizable voice alerts for proactive intervention.
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Two-Way Audio: Dual microphones and built-in speaker support real-time communication and audio recording.
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Rugged Outdoor Design: IP67 weatherproof housing with wide voltage tolerance ensures reliable performance in harsh conditions.
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Flexible Storage: Supports up to 512 GB MicroSD card, NAS, FTP, and Dahua NVRs.
Perfect For:
- Home driveways and entrances
- Commercial storefronts
- Warehouse perimeters
- Gated communities or shared parking areas
- School campuses
- Rural properties or farms
Installer Tips
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Mounting Height: 2.5–4 meters recommended for optimal coverage and deterrence.
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Active Deterrence Setup: Configure strobe and audio alerts via NVR or DMSS app.
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One-Tap Disarming: Enable quick arming/disarming through the Dahua mobile app.
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PoE Installation: Use PoE for simplified cabling and integration.
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AcuPick Integration: Works best when paired with Dahua NVRs for fast target search.
Downloads
Quick-Read Specs
| Specification |
Detail |
| Resolution |
8MP (3840 × 2160 @25/30 fps) |
| Sensor |
1/2.8″ CMOS |
| Lens |
Motorized 2.7–13.5 mm, F1.0 |
| Illumination Distance |
IR: 50 m, Warm Light: 40 m |
| Video Compression |
H.265, Smart H.264+/H.265+, AI H.264/H.265 |
| Imaging Enhancements |
120 dB WDR, 3D NR, BLC, HLC, Digital Watermark |
| Audio |
Dual Mic + Speaker (Two-Way Talk) |
| Storage |
MicroSD up to 512 GB, FTP, NAS |
| Protection |
IP67 |
| Power |
12V DC / PoE (802.3af) |
| Dimensions |
288.4 × 94.4 × 84.7 mm |
| Weight |
1.05 kg (Net) |
| Warranty |
3 years |
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
This feature intelligently balances visibility with discretion. At night, the camera defaults to IR mode to minimize light pollution. But when motion is detected, the white LED activates to capture full-color footage — which is critical for identifying faces, clothing, or vehicle color. Once the scene is clear, it switches back to IR. This not only saves power but reduces unnecessary nighttime lighting that could bother neighbors or tenants. Ideal for residential zones or quiet commercial areas where constant white light is not desirable.
SMD 4.0 (Smart Motion Detection)
Unlike basic motion detection that triggers for any movement, SMD 4.0 uses advanced AI to filter out irrelevant motion like animals, shadows, or moving trees. It specifically identifies human and vehicle shapes, reducing false alarms and saving storage. This is especially useful in environments with heavy foliage, pets, or changing lighting conditions. The accuracy of alerts also helps reduce notification fatigue on mobile apps.
AcuPick Search Technology
Searching through hours of recorded footage is time-consuming. AcuPick allows users to select a person or vehicle in one camera view and instantly locate all appearances across compatible NVR footage. It dramatically cuts investigation time, especially in large-scale surveillance setups. This feature is ideal for retail, school campuses, or any scenario where tracking movement across time and location is important.
AI SSA (Scene Self-Adaption)
Lighting conditions vary throughout the day and from scene to scene — from shadows on a driveway to direct sunlight on a storefront. AI SSA automatically adjusts key image parameters like contrast, white balance, and exposure in real time to maintain image clarity. This reduces the need for manual configuration and ensures better video evidence during critical moments, regardless of changing conditions.
Active Deterrence (Red/Blue Lights + Siren)
This camera doesn’t just record — it intervenes. When an intruder triggers your set perimeter rule (like a tripwire or intrusion zone), the camera flashes red and blue lights and plays a loud audible warning. This can prevent crimes before they happen, especially in unsecured outdoor areas. You can upload your own voice warning (e.g., “This area is under video surveillance”) or choose from pre-recorded ones. It’s especially useful in remote areas, construction sites, and after-hours business entrances.
WizSense AI Platform
WizSense is Dahua’s AI suite designed for small to medium-sized systems. It provides professional-grade AI features like human/vehicle detection, AcuPick, and SMD without requiring enterprise-level hardware. This makes high-performance AI surveillance more accessible and affordable for SMBs, residential users, and integrators seeking value without sacrificing quality.
Local + Remote Storage Options
You can record footage directly to a microSD card (up to 512GB), send files to NAS or FTP, or use a network video recorder (NVR). This flexibility allows for both standalone and system-based setups. Local SD storage is ideal for backup in case of network failure, while NAS or NVR offers larger capacity and central access. Smart H.265+ encoding significantly reduces file sizes without sacrificing image quality.
Integration and App Control
Fully compatible with Dahua’s mobile app (DMSS), desktop clients (SmartPSS Lite), and back-end systems (DSS), this camera also supports ONVIF for use with third-party VMS or NVRs. Via the app, users can arm/disarm alarms with one tap, receive push notifications, speak through the camera, or playback footage. Setup is straightforward, even for non-technical users, especially with QR code scanning and remote live view.
Cybersecurity Protections
Includes encryption, secure authentication, HTTPS, trusted boot, and access control protocols to safeguard against external threats.
More About AcuPick - Smart Video Seach 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 capture full-color video at night?
Yes. With Smart Dual-Light and Starlight, it provides vivid full-color images when people or vehicles are detected, even in low-light environments.
Q2: Is the lens adjustable?
Yes. The motorized 2.7–13.5 mm vari-focal lens allows remote zoom and focus for flexible coverage.
Q3: Does it support two-way communication?
Yes. It has dual microphones and a built-in speaker, enabling real-time two-way talk.
Q4: Is it suitable for outdoor use?
Yes. The IP67 housing protects against dust, rain, and extreme weather.
Q5: How much storage does it support?
It supports MicroSD cards up to 512 GB, along with FTP, NAS, and Dahua NVRs.
Comparison Table
TiOC 2.0 vs. TiOC 3.0 - What’s New?
| Category |
TiOC 2.0 (DH-IPC-HFW3849T1-ZAS-PV) |
TiOC 3.0 (DH-IPC-HFW3849T1-ZAS-PV-ANZ-S2) |
| Illumination & Light Efficiency |
Single warm + IR LED lights, standard efficiency. Max IR 50m, Warm 40m. |
Upgraded multi-core warm & IR lights — brighter, more efficient, better light uniformity. Max IR 50m, Warm 40m. |
| Low-Light Performance |
Excellent for its generation, using 1/2.8" CMOS sensor and F1.0 lens. Min. Illumination 0.004 lux@F1.0 (Color, 30 IRE). |
Enhanced Starlight performance with improved 1/2.8" CMOS sensor and **F1.0 lens**, leading to superior light gathering. Min. Illumination **0.004 lux@F1.0 (Color, 30 IRE)**. (Note: While values may be the same, 3.0 often has internal enhancements for perception.) |
| Active Deterrence |
Red/blue strobe + customizable voice alerts, two-way audio via dual mic and speaker. Max 110dB speaker. |
Same deterrence functions, but potentially louder speakers and improved light visibility due to upgraded illuminators. Still features dual mic and speaker. Max 110dB speaker. |
| Lens Type |
Motorized vari-focal lens (2.7 mm–13.5 mm) with F1.0 aperture. |
Motorized vari-focal lens (2.7 mm–13.5 mm) with **F1.0 aperture**. (Both vari-focal models have this, the improvement in 3.0 is more holistic.) |
| AI Features |
SMD 4.0 (human/vehicle filtering), AcuPick, perimeter protection. |
Features SMD 4.0 with improved AI accuracy and faster AcuPick retrieval. Includes AI SSA and one-tap arming/disarming. |
| Smart Dual Illumination |
Switches between IR and white light on detection. Smart Dual Light functionality. |
Smarter light control and better synchronisation with AI events, reducing light pollution more efficiently. |
| WizSense Platform / Chipset |
Based on Dahua’s WizSense chip and ISP, supporting mentioned features. |
Upgraded chipset and enhanced image signal processing (ISP), leading to better overall image quality and AI performance. |
| Cybersecurity & Stability |
Standard security protocols, good basic hardening. |
Enhanced trusted boot, firmware encryption, configuration encryption, upgrade integrity, more robust cyber security measures. |
| Max MicroSD Card Support |
Up to 256 GB. |
Up to 512 GB Micro SD card support. |
| DORI Distance (Wide) |
Detect: 89.9 m / Observe: 36.0 m / Recognize: 18.0 m / Identify: 9.0 m (for 2.7mm). |
Detect: 89.9 m/ Observe: 36.0 m/ Recognize: 18.0 m/ Identify: 9.0 m (for 2.7mm). (DORI distances for these exact vari-focal models are very similar, improvements might be subtle or for different lens types in the series.) |
| Power Consumption (Max) |
Typically around 10.3 W (PoE). |
Max. 10.3 W (PoE). (Power consumption for these specific models is very similar.) |
TIOC Standard Vs TIOC Pro (General Comparison - *for fixed lens models*, not your specific vari-focal bullet)
| Feature |
DH-IPC-HDW3849H-AS-PV-ANZ-S2(Standard Model - *Example Fixed Lens*) |
DH-IPC-HDW3849H-AS-PV-PRO-ANZ(Enhanced PRO Version - *Example Fixed Lens*) |
| Image Sensor |
1/2.7" CMOS |
1/1.8" CMOS (larger sensor = improved low-light clarity)
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| Min. Illumination (Colour) |
0.004 Lux @ F1.0 |
0.0008 Lux @ F1.0 (superior night colour)
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| Field of View (2.8mm lens) |
H: 106°, V: 55°, D: 125° |
H: 109°, V: 59°, D: 131° (wider coverage)
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| IR & Warm Light Range |
30m (IR) / 30m (Warm light) |
30m (IR) / 30m (Warm light) |
| Illuminator Type |
1x IR + 1x Warm light |
2x Multi-core IR/Warm lights (brighter and smarter)
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| MicroSD Card Support |
Up to 256GB |
Up to 512GB |
| Built-in Mic |
Yes (Dual Mic) |
Yes (Dual Mic) |
| Speaker |
Yes |
Yes |
| Deterrence |
Red/blue strobe + built-in siren |
Same |
| Privacy Masking |
4 areas |
8 areas |
| Lens Mount |
M12 |
M16 (larger lens interface)
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| DORI (Detect/Identify Range) |
78m detect / 7.8m identify (3.6mm lens) |
100m detect / 10m identify (3.6mm) |
| Power Consumption (Max) |
10.1W (PoE) |
10W (PoE) |
| Dual Power Backup |
Not specified |
Yes – 12VDC & PoE failover supported |
| Dimensions |
Ø122 × 110.9 mm |
Ø122 × 116.1 mm (slightly deeper)
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| Weight (Net) |
0.75 kg |
0.8 kg |
| Audio I/O |
1 in / 1 out (RCA) |
1 in / 1 out (RCA) |
| Smart Features |
SMD 4.0, AcuPick, AI SSA, One-tap Disarm |
Same |
| Video Streams |
3 Streams |
3 Streams |
| Resolution Options |
Up to 8MP, substreams down to CIF |
Same (adds 6M @ 3200×1800) |
| Use Case Summary |
Reliable active deterrence with smart detection |
Enhanced clarity, low-light vision & professional-grade range |
Summary Recommendation
Choose the PRO model (DH-IPC-HDW3849H-AS-PV-PRO-ANZ) if you need:
- Superior low-light colour performance
- Greater SD card capacity
- Wider field of view and improved identification distances
- More privacy zones or dual power reliability
Choose the S2 model (DH-IPC-HDW3849H-AS-PV-ANZ-S2) if you need:
- Reliable active deterrence and AI functions at a better price point
- Solid coverage for general residential or small business use
