The Dahua IPC-HDW3849H-AS-PV-ANZ-S2-BLK is a smart security camera designed to deter intruders while delivering reliable video coverage around the clock. It combines intelligent detection, full-colour night surveillance, and active deterrence features to protect homes, businesses, and outdoor spaces. With built-in audio, dual light sources, and AI-powered alerts, it helps users respond faster to real threats while reducing false alarms. Ideal for anyone seeking a proactive and smarter approach to surveillance.
Key Features
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Smart Dual Illumination – Switches between infrared and white light to reduce light pollution and capture full-colour footage only when motion is detected.
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Active Deterrence (Lights + Audio) – Flashes red/blue lights and plays a voice alert to scare off intruders in real-time.
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SMD 4.0 – Filters out non-human/motor vehicle motion to drastically reduce false alarms from rain, animals, or shadows.
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AcuPick Search – Find people or vehicles instantly in playback using intelligent, accurate matching.
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Two-Way Talk – Built-in mic and speaker allow remote conversations with visitors or trespassers.
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AI Scene Self-Adaption (SSA) – Automatically adjusts image settings based on lighting or scene changes to keep video quality sharp and balanced.
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Weatherproof (IP67 Rated) – Built tough to handle dust, heavy rain, and extreme temperatures from –40°C to 60°C.
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Local & Network Storage – Supports microSD (up to 256GB), NAS, FTP, and integrates seamlessly with Dahua NVRs.

Perfect For:
- Residential front doors and driveways
- Retail storefronts and cashpoint zones
- Carparks and open garages
- School entrances and building perimeters
- Warehouse loading bays
- Rural properties and farm boundaries
Installer Tips
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Mount Height: Install between 2.5–3.5 meters for optimal human and vehicle detection accuracy.
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Use PoE: Simplify setup by running both power and data through a single Cat5e/Cat6 cable.
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Lens Selection: Use 2.8mm for wide areas (driveways), 3.6mm for narrower or longer-range views (hallways, alleys).
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Voice Alerts: Upload custom audio files via the app or NVR to tailor the deterrent message.
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NVR Compatibility: Best used with Dahua AI NVRs to unlock features like AcuPick and Smart Search.
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Avoid Reflective Surfaces: For night mode, keep the warm light away from shiny surfaces to reduce glare in the footage.
Downloads
Quick-Read Specs
Spec |
Details |
Resolution |
8MP (3840 × 2160) |
Lens Options |
2.8mm (H: 106°), 3.6mm (H: 85°) |
Night Vision |
Smart Dual Light (IR + White Light, 30m) |
Deterrence |
Red/blue strobe + customizable siren |
AI Features |
SMD 4.0, AcuPick, AI SSA |
Audio |
Built-in dual mic + speaker (2-way talk) |
Storage |
MicroSD (up to 256GB), NAS, FTP, SFTP |
Power |
12VDC / PoE |
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 Light
Uses IR for standard night monitoring and automatically switches to warm light when a human or vehicle is detected, providing full-color video for key events while reducing light pollution.
Active Deterrence with Siren & Light
Equipped with built-in red and blue lights plus a speaker for customizable voice or sound alarms. These activate during perimeter events to deter intruders and provide effective intervention.
Perimeter Protection & SMD 4.0
Advanced AI algorithms accurately detect and classify humans and vehicles. Functions like tripwire and intrusion detection reduce false alarms, while SMD 4.0 filters out irrelevant motion (such as animals).
High-Resolution Imaging
8MP resolution (3840 × 2160) at up to 30fps delivers sharp, detailed video. Features like 120 dB WDR, Starlight, 3D Noise Reduction, and digital watermarking ensure clear images even in challenging conditions.
Durable Outdoor Design
Metal housing with IP67 protection withstands dust, rain, and extreme temperatures (–40 °C to +60 °C), ensuring reliable long-term outdoor use.
Audio & Two-Way Talk
Built-in dual microphones and a speaker support two-way communication, synchronized audio recording, and alarm sounds for active deterrence.
Advanced Storage & Connectivity
Supports PoE (802.3af) for simplified installation and multiple storage methods, including Micro SD (up to 256 GB), NAS, FTP, and Dahua NVRs for intelligent event management.
AI Scene Self-Adaptation (AI SSA)
Automatically adjusts image parameters in fog, rain, backlight, or low-light conditions for consistently clear images.
One-Tap Arming & Disarming
Via the Dahua DMSS mobile app, users can quickly enable or disable event linkages, providing flexibility across multiple scenarios.
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 technology, it provides vivid color images when a person or vehicle is detected, while still using IR for standard night monitoring.
Q2: Does this camera have two-way audio?
Yes. It includes dual microphones and a built-in speaker, supporting real-time two-way communication as well as customizable alarm sounds.
Q3: Is it vandal resistant?
No. While the camera has a strong metal housing and IP67 protection, the datasheet does not list an IK rating, so it is not classified as vandal resistant.
Q4: Is the lens fixed or vari-focal?
This model comes with fixed lens options of 2.8 mm or 3.6 mm, providing either a wide-angle view or more targeted coverage.
Q5: Can it integrate with NVRs or third-party systems?
Yes. It supports ONVIF (Profile S, G, T), ensuring smooth integration with Dahua NVRs and many third-party systems.
Q6: Does it support active deterrence features?
Yes. It has red/blue lights and a built-in speaker that can trigger siren sounds or pre-recorded/customized voice alarms when perimeter events occur.
Comparison Table
IPC-HDW3849H-AS-PV-ANZ vs. IPC-HDW3849H-AS-PV-ANZ-S2 - What’s New?
Category |
IPC-HDW3849H-AS-PV-ANZ (Older Version) |
IPC-HDW3849H-AS-PV-ANZ-S2 (Current Version) |
Image Sensor |
1/2.8" CMOS |
1/2.7" CMOS |
ROM / RAM |
128 MB / 512 MB |
256 MB / 2 GB |
Min. Illumination (Colour) |
0.004 lux@F1.0 (Color, 30 IRE) |
0.004 lux@F1.0 (Color, 30 IRE) |
Illumination Distance (IR & Warm Light) |
30m (IR) / 30m (Warm light) |
30m (IR) / 30m (Warm light) |
Field of View (2.8mm lens) |
H: 106°; V: 55°; D: 125° |
H: 106°; V: 55°; D: 125° |
Privacy Masking |
8 areas |
4 areas |
MicroSD Card Support |
Up to 256 GB |
Up to 256 GB |
Built-in Mic |
Yes (Dual Mic) |
Yes (Dual Mic) |
Speaker |
Yes |
Yes |
Smart Dual Illumination |
Yes |
Yes |
SMD Version |
SMD 4.0 |
SMD 4.0 |
AI SSA & One-tap Disarming |
Yes |
Yes |
DORI Distance (2.8mm lens, Detect) |
91.0 m (298.56 ft) |
66.0 m (216.54 ft) |
Cybersecurity |
Standard protections, encrypted transmission |
Enhanced trusted boot, trusted execution, trusted upgrade, along with video/firmware/configuration encryption. |
Power Consumption (Max) |
Not always specified, typically similar to newer model |
8.6 W (12 VDC) / 10.1 W (PoE) |
IPC-HDW3849H-AS-PV-ANZ (Older Version) Vs IPC-HDW3849H-AS-PV-ANZ-S2 (Current Version)
Feature |
IPC-HDW3849H-AS-PV-ANZ (Older Version) |
IPC-HDW3849H-AS-PV-ANZ-S2 (Current Version) |
Image Sensor |
1/2.8" CMOS |
1/2.7" CMOS (slightly larger)
|
Min. Illumination (Colour) |
0.004 Lux @ F1.0 |
0.004 Lux @ F1.0 |
Field of View (2.8mm lens) |
H: 106°, V: 55°, D: 125° |
H: 106°, V: 55°, D: 125° |
IR & Warm Light Range |
30m (IR) / 30m (Warm light) |
30m (IR) / 30m (Warm light) |
Illuminator Type |
1x IR + 1x Warm light |
1x IR + 1x Warm light |
MicroSD Card Support |
Up to 256GB |
Up to 256GB |
Built-in Mic |
Yes (Dual Mic) |
Yes (Dual Mic) |
Speaker |
Yes |
Yes |
Deterrence |
Red/blue strobe + built-in siren |
Red/blue strobe + built-in siren |
Privacy Masking |
8 areas |
4 areas |
Lens Mount |
M12 |
M12 |
DORI (Detect/Identify Range - 2.8mm lens) |
91.0m detect / 9.1m identify |
66.0m detect / 6.6m identify |
Power Consumption (Max) |
Not always specified |
10.1W (PoE) |
Dual Power Backup |
Not specified |
Not specified |
Dimensions |
Ø122 × 110.9 mm |
Ø122 × 110.9 mm |
Weight (Net) |
0.75 kg |
0.75 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 |
SMD 4.0, AcuPick, AI SSA, One-tap Disarm |
Video Streams |
3 Streams |
3 Streams |
Resolution Options |
Up to 8MP |
Up to 8MP |
Use Case Summary |
Reliable active deterrence with smart detection |
Reliable active deterrence with smart detection and enhanced internal processing |
Summary Recommendation
Choose the IPC-HDW3849H-AS-PV-ANZ-S2 model (Current Version) if you need:
- Improved internal processing capabilities (more RAM/ROM).
- The latest cybersecurity enhancements for trusted boot and execution.
Choose the IPC-HDW3849H-AS-PV-ANZ model (Older Version) if you need:
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More privacy masking zones (8 vs 4 in the -S2).
- Potentially longer DORI distances as per some specifications (91m detect vs 66m detect with 2.8mm lens).
- A more budget-friendly option while still offering excellent core features.