The Dahua DH-IPC-HFW3866EP-AS-AUS is a fixed-lens 8MP bullet camera designed for smart outdoor surveillance. Featuring SMD 4.0, AI scene optimization, built-in audio, and perimeter protection, this compact camera is ideal for installations where high-resolution monitoring and AI detection accuracy are essential.
Key Features
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8MP Ultra HD Quality – Delivers sharp, detailed video for facial or plate recognition
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Fixed Lens (2.8mm or 3.6mm) – Choose the angle that suits your site layout
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Smart IR Night Vision (30m) – Clear visibility even in total darkness
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SMD 4.0 (Smart Motion Detection) – Filters out animal and object movement
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AI SSA (Scene Self-Adaption) – Automatically adjusts for rain, fog, or glare
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Built-in Mic + Audio I/O – Record sound and connect to speakers (AS only)
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Alarm I/O Support – Trigger lights, sirens, or external sensors (AS only)
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IP67 Weatherproof – Built to endure harsh outdoor environments

Perfect For:
- Gate monitoring
- Residential driveways
- Storefronts
- Outdoor hallways or corridors
- Small car parks
- Home or business perimeter surveillance
Install Tips
- Choose 2.8mm for wide-area views (e.g. driveways), or 3.6mm for more focused zones
- Connect to an AI NVR to enable Quick Pick and smart search functions
- Use PoE for simpler installation with a single cable
- For audio and alarm connections, ensure you're using the AS variant
- Combine with PFA130-E junction box or PFA152-E pole mount for cleaner installs
Downloads
Quick-Read Specs Card
Feature |
Details |
Resolution |
8MP (3840 × 2160) |
Lens Options |
2.8mm (Wide) or 3.6mm (Standard) |
Night Vision |
IR up to 30 meters |
AI Features |
SMD 4.0, Perimeter Protection, AI SSA |
Audio |
Built-in mic + Audio In/Out (AS only) |
Alarm I/O |
1 input, 1 output (AS only) |
Storage |
Micro SD (up to 256GB) |
Power |
12V DC / PoE |
Weather Rating |
IP67 |
Extra Info
Smart Motion Detection (SMD 4.0)
Using advanced AI algorithms, SMD 4.0 intelligently filters out motion triggered by irrelevant objects like animals, falling leaves, or shifting shadows. This ensures alerts are only triggered by actual people or vehicles, significantly reducing false alarms and improving the efficiency of your security system.
AI Scene Self-Adaption (AI SSA)
AI SSA enhances image clarity in real time by automatically adjusting brightness, contrast, and exposure to suit the current environment. Whether you're dealing with fog, glare, backlight, or nighttime shadows, the camera dynamically adapts to ensure sharp, reliable footage without manual calibration.
Fixed Lens Options
Choose between two lens configurations based on your coverage needs:
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2.8mm – Offers a wide 107° field of view, ideal for open spaces like driveways or courtyards.
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3.6mm – Provides a narrower 84° field of view for longer-range visibility in hallways, gates, or corridors.
Audio & Alarm I/O (AS Model Only)
The AS variant is designed for interactive installations, featuring audio in/out and alarm I/O terminals. These ports allow you to connect microphones, speakers, sirens, or motion sensors—enabling a two-way communication system or automated deterrent responses when motion is detected.
Weatherproof Outdoor Protection
Rated IP67 and engineered for durability, the camera resists dust, heavy rain, and extreme temperatures ranging from -40°C to +60°C. Whether it's installed in a tropical climate or exposed to snow and wind, it remains reliable year-round for demanding outdoor environments.
More About AcuPick – Precision Video Search Powered by AI
Dahua’s AcuPick feature revolutionizes how you locate events in video surveillance footage. Instead of manually watching hours of clips, AcuPick intelligently filters and finds relevant footage based on AI-classified human or vehicle presence.

Highlights of AcuPick:
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AI-Driven Precision – Differentiates between humans and vehicles for relevant search results.
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Smart Filtering – Search using characteristics like clothing color or vehicle type—no need to know the exact time of an incident.
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Instant Video Recall – Jump straight to key events with a few clicks.
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False Alarm Reduction – Minimizes alerts triggered by non-critical motion.
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Flexible Deployment – Works with Dahua’s smart cameras or AI-compatible NVRs.
Practical Applications:
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Retail & Offices – Trace customer movement or detect unauthorized access.
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Car Parks & Driveways – Locate vehicle activity instantly.
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Public Spaces – Search for individuals using visual traits.
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Gated Residences – Review vehicle arrivals or visitor interactions quickly.
AcuPick transforms passive surveillance into active, intelligent security management—saving valuable time and enhancing operational effectiveness.
Q&A
Does it support audio recording?
Yes, the AS model includes a built-in microphone and audio I/O ports.
Can I connect this camera to a siren or sensor?
Yes, if you're using the AS model, it includes 1 alarm input and 1 output.
What’s the difference between AS and S models?
The AS version supports audio and alarm connections, while the S version does not.
Is this camera suitable for outdoor use?
Yes, it’s IP67 rated and handles temperatures from –40°C to +60°C.
Do I need an NVR?
You can record directly to a Micro SD card (up to 256GB), but pairing it with a Dahua AI NVR adds advanced search and playback features.
What’s the night vision distance?
Up to 30 meters with IR illumination.
Is this zoomable?
No, this is a fixed-lens model. If you need zoom, check out the motorised version (e.g. DH-IPC-HFW3866TP-ZAS-AUS).
Comparison Table
DH-IPC-HFW3866EP-AS-AUS vs DH-IPC-HFW3866TP-ZAS-AUS
Feature |
DH-IPC-HFW3866EP-AS-AUS |
DH-IPC-HFW3866TP-ZAS-AUS |
Resolution |
8MP (3840 × 2160) |
8MP (3840 × 2160) |
Lens Type |
Fixed (2.8mm or 3.6mm) |
Motorized Varifocal (2.7–13.5mm) |
Field of View |
107° (2.8mm) / 84° (3.6mm) |
113°–31° (adjustable) |
Night Vision |
IR up to 30m |
IR up to 60m |
AI Features |
SMD 4.0, Perimeter Protection, AI SSA |
SMD 4.0, Perimeter Protection, AI SSA |
Audio |
Built-in Mic + Audio I/O (AS only) |
Built-in Mic + Audio I/O |
Alarm I/O |
1 input, 1 output (AS only) |
1 input, 1 output |
Zoom Capability |
No (Fixed lens) |
Yes (Motorized zoom) |
Storage |
Micro SD (up to 256GB) |
Micro SD (up to 256GB) |
Power Options |
12V DC / PoE |
12V DC / PoE |
Weather Rating |
IP67 |
IP67 |
Best Use Case |
Wide or fixed view setups (driveways, gates) |
Flexible zoom for changing focal lengths (car parks, entries) |
Summary Recommendation
Choose the DH-IPC-HFW3866EP-AS-AUS if you need:
- A cost-effective, fixed-lens 8MP camera for consistent field-of-view
- Reliable AI detection with minimal false alerts (SMD 4.0, AI SSA)
- Built-in mic and optional audio/alarm I/O (AS variant)
- A simple setup for fixed monitoring zones like driveways, storefronts, or gates
Choose the DH-IPC-HFW3866TP-ZAS-AUS if you need:
- Motorized zoom to adjust viewing angles remotely after installation
- Greater IR night vision range (up to 60m)
- More flexible deployment for areas that may require tighter focus, like entrances, car parks, or perimeter fences
- Full audio and alarm I/O support built-in