The Dahua IPC-HDW3849H-AS-PV-ANZ-S2 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 Illumination
This camera uses both infrared and warm white light to provide smart lighting control at night. IR is used by default to remain discreet, but when motion is detected in defined areas, the warm light activates to capture colour video. Once the subject leaves, the camera switches back to IR — a system that balances visibility, power consumption, and environmental impact.
SMD 4.0 (Smart Motion Detection)
SMD 4.0 goes far beyond traditional motion detection. It applies deep learning algorithms to distinguish between real threats like people or cars, and harmless motion like pets or falling leaves. When paired with a compatible Dahua AI NVR, you can use Quick Pick to rapidly search for motion events by human or vehicle criteria.
AcuPick
AcuPick leverages advanced back-end processing to help you locate individuals or vehicles across large timelines. It minimizes playback time and narrows down recordings to the most relevant events, especially useful for investigations or verifying past incidents.
AI Scene Self-Adaption (SSA)
The SSA feature analyzes environmental lighting and automatically fine-tunes brightness, contrast, and colour balance to ensure consistent image quality. It’s especially useful in outdoor or mixed-light environments where conditions shift throughout the day.
Active Deterrence
The camera includes flashing red and blue warning lights, a built-in speaker, and pre-recorded (or custom) voice alerts to actively deter potential intruders. This not only captures attention but can prevent incidents from escalating — particularly effective in retail, construction, or unmonitored home entry points.
One-Tap Arming/Disarming
With the Dahua mobile app, users can instantly enable or disable event responses like lights, audio alarms, and recording rules. This flexibility is useful in situations where alerts aren’t needed — such as when family members are at home — but can be reactivated with a single tap when leaving the premises.
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 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
Q: Can this camera record in colour at night?
Yes, it uses smart dual illumination to switch on white light only when motion is detected, enabling full-colour night footage while keeping light pollution minimal.
Q: How loud is the speaker for the audio deterrent?
The built-in speaker is loud enough for outdoor use and can clearly project voice alerts or sirens within close-to-mid range (about 5–10 meters effectively).
Q: Can I disable the flashing lights and siren?
Yes, both light and audio deterrents can be manually disabled or scheduled via the Dahua app or NVR settings.
Q: Does it work with third-party NVRs?
It supports ONVIF protocols (Profile S/G/T), so it can integrate with many third-party NVRs, though advanced AI features work best with Dahua NVRs.
Q: How long can footage be stored on the SD card?
That depends on recording settings, but with a 256GB card and H.265+ compression, you can typically store several weeks of motion-based recordings.
Q: What’s the main difference between this and a PRO model?
PRO models may include varifocal lenses, higher IR range, or additional analytics, but this model offers excellent AI features and deterrence tools at a more accessible price point.
Q: Will the lights and siren go off automatically when someone enters?
Yes, when motion is detected in defined SMD or tripwire zones, the camera can automatically trigger strobe lights and voice alerts — no manual intervention needed.
Q: Can I upload my own audio message for the alarm?
Yes, it supports custom audio upload via compatible NVR or mobile app, allowing personalized deterrent messages.
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.
