The Dahua IPC-HDW3841T-ZAS is a powerful 8MP eyeball camera from the WizSense series, featuring AI-based perimeter protection, a motorized zoom lens, Starlight low-light performance, and 50-meter IR range. Designed for accuracy and reliability, this camera intelligently distinguishes between people and vehicles while maintaining crystal-clear image quality day and night.
Key Features
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Motorised Vari-focal Lens (2.7–13.5 mm) – Adjust zoom remotely to cover wide areas or focus tightly without reinstallation.
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AI People & Vehicle Detection – Smart algorithms reduce false alarms while ensuring relevant alerts.
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SMD Plus Motion Filtering – Minimises nuisance alerts by ignoring non-threat movement.
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50 m IR Night Vision – Long-range IR ensures reliable nighttime coverage.
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Starlight Colour Imaging – Retains colour detail in low light, supplementing IR when available.
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Smart H.265+ Compression – Efficiently balances bandwidth and storage needs.
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Built‑in Microphone – Adds crucial audio context to surveillance footage.
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IP67 Weatherproofing – Durable metal housing protected against dust and rain.
Perfect For:
- Residential frontages and long driveways
- Retail store perimeters with adjustable viewing needs
- Building entry points with variable lighting
- Parking lots and vehicle zones
- Public parks and campuses with day-night activity
- Critical infrastructure with elevated weather exposure
Install Tips
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Lens Choice & Mounting Height — Install at 2.5–4 m and use zoom to tailor coverage for faces or license plates.
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Activate AI Detection — Enable people/vehicle mode post-install to reduce false motion alarms.
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SMD Plus is Essential — Enables ignored movement from trees or animals, keeping alerts relevant.
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Leverage Smart Compression — Use H.265+ to cut storage costs without losing quality.
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Pair with Smart NVR — Unlock intelligent search like Quick Pick and perimeter event playback.
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Utilise Starlight Mode — In low-light settings, enable starlight to maintain colour imaging alongside IR.
Downloads
Quick-Read Specs Card
| Feature |
Specification |
| Resolution |
8 MP (3840 × 2160) |
| Lens |
Motorised 2.7–13.5 mm |
| Night Vision |
2 IR LEDs, up to 50 m |
| AI Features |
Human & vehicle detection, SMD Plus |
| Audio |
Built-in microphone |
| Storage |
MicroSD up to 256 GB; NAS; FTP/SFTP |
| Power |
12 V DC / PoE (802.3af) |
| Weather Protection |
IP67 |
Extra Info
Motorised Vari-focal Lens
This camera features a 2.7–13.5 mm motorised vari-focal lens, allowing users to remotely fine-tune the zoom and focus settings through the software interface. Whether you're monitoring a broad area like a parking lot or need to zoom in on specific entry points like gates or doors, this flexibility removes the need for manual adjustments—making it ideal for hard-to-reach locations, multi-purpose zones, or evolving surveillance needs.
SMD Plus for Reliable Detection
Powered by Smart Motion Detection Plus (SMD Plus), the camera leverages AI algorithms to intelligently differentiate between humans, vehicles, and non-threatening movement like swaying branches, rain, or passing animals. This helps drastically reduce false alarms, allowing security personnel to focus only on real, actionable events—perfect for locations with heavy environmental motion such as yards, driveways, and open outdoor spaces.
Starlight Night-Time Imaging
Utilizing Starlight Technology, this model excels in low-light conditions, delivering bright, color-rich footage well after other cameras have switched to black-and-white infrared mode. This ability to maintain vivid, true-to-life imagery at night provides better context, detail, and facial or vehicle recognition, which is especially useful in residential areas, alleyways, or nighttime commercial monitoring.
Smart H.265+ Compression
With Smart H.265+ video encoding, the camera automatically adapts its bitrate based on motion and scene complexity. During periods of low activity, it reduces data consumption, while ramping up quality during dynamic scenes. This means lower storage requirements and reduced network bandwidth usage, all while preserving essential visual detail. It’s ideal for installations where storage efficiency and retention time are a priority.
Cybersecurity Focus
Security doesn’t end at surveillance—this camera is designed with cyber-protection in mind. Built-in features include HTTPS encryption, secure firmware updates, IP address filtering, and access controls, helping to safeguard your video streams and system access from unauthorized users or potential cyberattacks. These protections are crucial for both commercial deployments and remote monitoring setups where data security is paramount.
While the IPC-HDW3841T-ZAS does not feature built-in AcuPick, it supports AcuPick search functions when connected to an AI-capable Dahua NVR. The camera sends AI metadata (e.g., face detection, people counting, perimeter classifications) that the NVR uses for smart filtering and playback search.
Benefits via AI NVR Integration:
- Search by human or vehicle presence
- Filter playback using traits like mask, gender, or clothing
- Skip irrelevant footage and jump to key events instantly
- Use AI-driven logs and smart snapshots from camera metadata
Q&A
Can this record in colour at night?
Yes. The Starlight sensor allows colour recording under low‑light conditions; IR provides clear B/W when needed.
Does AI detection work on any NVR?
Yes, via ONVIF; however, pairing with a Dahua Smart NVR supports full AI event tagging and Quick Pick search.
Is the zoom lens adjustable remotely?
Yes—motorised zoom enables remote adjustment through software or NVR interface.
Too bright IR at close range — can it adjust?
Yes. The camera supports smart IR to prevent overexposure on near subjects.
Will the camera alert instantly when someone crosses a line?
Yes—Tripwire and Intrusion detection trigger immediate alerts when enabled.
How long will a 256 GB card record?
Approximately 25–35 days at full resolution, depending on activity and compression settings.
Can the microphone be disabled?
Yes, audio can be muted in firmware or client software.
