This 6 MP bullet camera is a reliable security solution designed to accurately detect and classify both people and vehicles, significantly reducing false alarms. It's ideal for anyone needing intelligent monitoring with clear imaging, day or night, and straightforward installation.
Features
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Intelligent Human & Vehicle Detection: Accurately distinguishes between people and vehicles, minimizing false alarms from irrelevant movements like animals or swaying trees.
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Clear Night Vision: Built-in IR LEDs provide effective illumination up to 30 meters, ensuring clear black and white video even in complete darkness.
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Efficient Video Storage: Utilizes H.265 and Smart H.265+/H.264+ codecs to significantly reduce file sizes without sacrificing video quality, saving on storage and bandwidth costs.
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Adaptable to Changing Light: Features Wide Dynamic Range (WDR) and Scene Self-adaptation (SSA) to maintain clear images in challenging lighting conditions, such as strong backlighting or low light.
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Built-in Microphone: Captures audio within the monitoring area, adding an extra layer of information for security monitoring.
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Flexible Installation: Supports both 12 VDC and Power over Ethernet (PoE) for simplified wiring and power delivery.
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Robust Weather Protection: IP67 rated enclosure ensures the camera is protected against dust and water, making it suitable for outdoor use in various weather conditions.
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Local Storage Capability: Supports up to a 256 GB Micro SD card for on-board video recording, providing a backup or standalone recording option.
Perfect for:
- Small business entrances
- Residential driveways and backyards
- Perimeter security for homes and offices
- Monitoring building facades
- Small warehouse security
- Garage and parking area surveillance
Downloads
Quick-Read Specs
| Feature |
Specification |
| Resolution |
6 MP (3072 × 2048) |
| Lens Options |
2.8 mm; 3.6 mm |
| Night Vision |
IR LED, 30 m (98.43 ft) range |
| Deterrence |
None (no red/blue strobe or siren) |
| AI Features |
SMD 4.0, AI SSA, Tripwire, Intrusion (human/vehicle classification) |
| Audio |
Built-in Mic; Audio In/Out (RCA port, -AS model only) |
| Storage |
Micro SD card (max. 256 G); FTP; SFTP; NAS |
| Power |
12 VDC / PoE (802.3af) |
| Weather Rating |
IP67 |
Extra Info
SMD 4.0 (Smart Motion Detection)
SMD 4.0 is an advanced feature that significantly enhances motion detection by intelligently differentiating between human and vehicle movements and other sources of motion, like swaying trees, rain, or small animals. This means you'll receive highly accurate alerts that truly matter, greatly reducing false alarms and the time spent reviewing irrelevant footage. When combined with a Dahua AI NVR, the "Quick Pick" feature further streamlines your review process, allowing you to quickly find and review video segments featuring human or vehicle targets, prioritizing the most relevant events.
AI SSA (AI Scene Self-adaptation)
AI Scene Self-adaptation (AI SSA) is a powerful technology that automatically adjusts the camera's image parameters based on environmental conditions. Whether it's facing rain, fog, strong backlighting, or low light, the camera intelligently adapts to ensure clear and usable images are always produced. This eliminates the need for manual adjustments and guarantees consistent, high-quality video surveillance regardless of the weather or lighting changes throughout the day and night.
Efficient Video Compression (Smart H.265+/H.264+ and AI Coding)
The camera utilizes cutting-edge video compression technologies, including H.265, Smart H.265+, Smart H.264+, and AI Coding (AI H.265/AI H.264). These advanced algorithms dynamically optimize the video stream's bit rate, resulting in significantly smaller file sizes without compromising image quality. This translates directly into substantial savings on storage costs and reduced network bandwidth consumption, making it more economical to store and transmit high-resolution video footage.
Perimeter Protection
Powered by deep learning algorithms, the camera's Perimeter Protection feature provides accurate detection of intrusions and tripwire violations, specifically classifying humans and vehicles. This intelligent filtering drastically reduces false alarms in designated restricted areas, such as pedestrian-only zones or vehicle-only areas. You can set up virtual boundaries, and the camera will only trigger an alarm when a person or vehicle crosses that line, providing targeted and effective security monitoring.
Cyber Security
Dahua network cameras prioritize robust cyber security to safeguard your surveillance system. This model incorporates a range of security technologies including strong authentication and authorization, access control protocols, trusted protection mechanisms, encrypted data transmission, and secure storage. These comprehensive measures are designed to enhance the camera's resilience against external cyber threats and prevent malicious attacks, ensuring the integrity and privacy of your video data.
Q&A
Q: Can this camera record in color at night?
A: No, this model features a built-in IR LED for night vision, which provides clear black and white images in low light or total darkness up to 30 meters. It does not have full-color night vision capabilities.
Q: Does this camera have a built-in speaker for two-way audio or alarms?
A: This specific model, the DH-IPC-HFW3666EP-AS-AUS, includes a built-in microphone for audio input. For models with "AS" in their name, it also supports 1 audio in and 1 audio out (RCA port), allowing for two-way audio if connected to a compatible system. However, it does not have an internal speaker for playing audio alerts directly from the camera itself.
Q: Can the IR illumination be disabled or adjusted?
A: Yes, the illuminator (IR LED) on/off control is configurable to "Auto" or "Manual," allowing you to manage when the IR light is active.
Q: Does this camera work with Network Video Recorders (NVRs) from other brands?
A: Yes, this camera supports ONVIF (Profile S/Profile G/Profile T) interoperability, which means it can generally work with NVRs from other brands that also support the ONVIF standard. However, for full functionality and to utilize all intelligent features like "Quick Pick" and "Smart Search," pairing it with a Dahua AI NVR is recommended.
Q: How long can the 256GB Micro SD card record video?
A: The recording duration on a 256GB Micro SD card depends on several factors, including the chosen resolution, frame rate, compression settings (H.265 is more efficient), and the amount of motion in the recorded scene. With efficient H.265 coding and typical settings, it can store many days, possibly weeks, of motion-triggered footage.
Q: What is the main difference between this '-AS-AUS' version and other Dahua models without '-AS'?
A: The '-AS' in the model name typically indicates that the camera supports additional audio input/output ports (1 in, 1 out via RCA) and alarm input/output ports (1 in, 1 out). Models without '-AS' might only have the built-in microphone and lack these physical audio and alarm connections.
Q: Will the camera automatically send alerts to my phone if motion is detected?
A: Yes, if the camera is configured with the Dahua DMSS mobile client, it can send push notifications to your smartphone for detected alarm events such as motion detection, intrusion, or tripwire events.
Comparison Table
Dahua 6MP WizSense Bullet vs. 4MP WizSense Bullet - DH-IPC-HFW3666EP-AS-AUS vs. DH-IPC-HFW3441EP-AS
| Category |
Newer Model (DH-IPC-HFW3666EP-AS-AUS) |
Older Model (DH-IPC-HFW3441EP-AS) |
| Image Sensor |
1/2.7" CMOS image sensor — offers a slightly larger sensor size for potentially better light gathering.
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1/3” CMOS image sensor |
| Maximum Resolution |
6 MP (3072 × 2048) @25/30 fps |
4 MP (2688 × 1520) @25/30 fps |
| Low-Light Performance (Min. Illumination Color) |
0.005 lux@F1.4 (Color, 30 IRE) |
0.005 lux@F1.6 |
| Illumination Type and Range |
1 (IR LED), Max IR distance: 30 m (98.43 ft) |
1 (IR LED), Max IR distance: 50 m (164.0 ft) — The older model boasts a longer IR range.
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| Smart Motion Detection (SMD) version or equivalent AI features |
SMD 4.0, AI SSA, Quick Pick (with AI NVR), Tripwire, Intrusion (human/vehicle classification) |
SMD Plus, AI SSA, Tripwire, Intrusion (human/vehicle classification) — SMD 4.0 is an advancement over SMD Plus for enhanced accuracy.
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| Active Deterrence capabilities |
None |
None |
| AI Functions |
SMD 4.0, AI SSA, Tripwire, Intrusion (human/vehicle classification), Quick Pick (with AI NVR), Smart Search |
SMD Plus, AI SSA, Tripwire, Intrusion (human/vehicle classification), Intelligent Search |
| Smart Dual Light functionality |
No |
No |
| Microphone & Speaker details |
Built-in Mic; Audio In/Out (RCA port, -AS model supports) |
Built-in Mic; Audio In/Out (RCA port) |
| Alarm & Audio I/O |
Alarm: 1 in, 1 out; Audio: 1 in, 1 out (-AS model supports) |
Alarm: 1 in, 1 out; Audio: 1 in, 1 out |
| Cybersecurity features |
Video encryption; Firmware encryption; Configuration encryption; Digest; WSSE; Account lockout; Security logs; IP/MAC filtering; Generation and importing of X.509 certification; syslog; HTTPS; 802.1x; Trusted boot; Trusted execution; Trusted upgrade |
Similar comprehensive set including video/firmware/configuration encryption, digest, account lockout, IP/MAC filtering, HTTPS, 802.1x, Trusted boot, Trusted execution, Trusted upgrade. |
| Power Options and reliability features |
12 VDC/PoE (802.3af); Wide voltage tolerance (±30% for some power supplies) |
12 VDC/PoE (802.3af); Wide voltage tolerance |
| Construction & Environmental Protection |
IP67 protection; Metal casing |
IP67 protection; Metal casing |
| Field of View (FoV) for 2.8 mm lens |
Horizontal: 111°; Vertical: 58°; Diagonal: 132° — Offers a wider horizontal and diagonal FoV.
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Horizontal: 103°; Vertical: 55°; Diagonal: 122° |
| DORI Distances (2.8 mm lens) |
Detect: 63.6 m; Observe: 25.4 m; Recognize: 12.7 m; Identify: 6.4 m |
Detect: 63.6 m; Observe: 25.4 m; Recognize: 12.7 m; Identify: 6.4 m — Remarkably similar, indicating consistent DORI performance despite resolution difference.
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| MicroSD Card Support |
Max. 256 G |
Max. 256 G |
| Lens Mount type |
M12 |
M12 |
| Physical attributes (dimensions, weight) |
192.7 mm × 70.5 mm × 66.4 mm; 590 g |
192.7 mm × 70.5 mm × 66.4 mm; 590 g — Identical dimensions and weight.
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| Streams and Resolution Options |
3 streams; Max. 6M (3072 x 2048) |
3 streams; Max. 4M (2688 × 1520) |
| Operating Temperature |
–40 °C to +60 °C (–40 °F to 140 °F) |
–40 °C to +60 °C (–40 °F to 140 °F) |
Summary Recommendation
When to choose the newer model, the DH-IPC-HFW3666EP-AS-AUS: This model is the superior choice when maximum image detail and cutting-edge AI detection are your top priorities. Its benefits include:
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Significantly Higher Resolution: Offers 6MP (3072 × 2048) for much clearer and more detailed images, crucial for identifying fine details in recordings.
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Enhanced AI with SMD 4.0: Provides the latest generation of Dahua's Smart Motion Detection, promising greater accuracy in distinguishing humans and vehicles from irrelevant motion, reducing false alarms.
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Wider Field of View: The 2.8mm lens offers a slightly wider field of view, potentially requiring fewer cameras to cover the same area.
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Larger RAM: 1GB RAM compared to 512MB in the older model, which can contribute to smoother performance and handle more complex AI tasks.
When to choose the older model, the DH-IPC-HFW3441EP-AS: This model remains a viable option if budget constraints are a significant factor and your surveillance needs are adequately met by its strong foundational features. Its suitability points include:
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Cost-Effectiveness: As a previous generation model, it will likely be available at a more attractive price point.
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Longer IR Night Vision: It has a notable advantage with a 50m IR range compared to the newer model's 30m, making it better for applications requiring longer-distance night surveillance in complete darkness.
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Robust Core Features: Still provides 4MP resolution, SMD Plus, perimeter protection, and solid cybersecurity features, which are more than sufficient for many general surveillance applications.
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Identical Durable Construction: Shares the same IP67 protection and metal casing, ensuring comparable resilience against environmental elements.
