Product SKU: IPC-HDBW3841R-ZAS
Product Overview
The Dahua WizSense 8MP motorised varifocal dome camera delivers sharp, detailed 4K-resolution surveillance with intelligent AI-driven detection built in. Designed for the WizSense 3 Series, it uses an independent AI chip and deep learning algorithm to accurately distinguish between humans and vehicles, reducing false alarms and letting security professionals respond quickly to real threats. The motorised 2.7–13.5mm varifocal lens allows remote zoom and focus adjustment without physically accessing the camera — a significant advantage during installation or reconfiguration. With Starlight low-light technology, IR illumination up to 50 metres, IP67 and IK10 ratings, and support for perimeter protection and smart motion detection, this camera suits demanding environments including car parks, warehouses, retail centres, and commercial building perimeters where reliable, intelligent monitoring is essential.
Key Capabilities
8MP 4K Resolution
Captures ultra-high-definition footage at 3840×2160 pixels, providing exceptional detail for facial recognition, licence plate identification, and post-incident review. Output runs at up to 25/30fps when AI functions are disabled, offering flexibility to suit your recording setup.
Motorised Varifocal Lens (2.7–13.5mm)
The built-in motorised zoom lens allows installers and operators to remotely adjust the field of view without climbing ladders or physically touching the camera. This saves significant time during installation and makes scene reconfiguration straightforward as site requirements change.
AI-Powered Human & Vehicle Detection
Using an independent AI chip and deep learning, the camera accurately classifies detected objects as human or vehicle. This dramatically reduces nuisance alarms triggered by animals, shadows, or foliage, ensuring security personnel are only alerted to genuine events that require attention.
Starlight Low-Light Performance
Starlight technology enables the camera to produce clear, colour-rich images in near-darkness conditions. Combined with up to 50 metres of built-in IR illumination, it maintains reliable surveillance performance throughout the night and in poorly lit environments such as underground car parks or loading docks.
Perimeter Protection & Smart Motion Detection
Supports advanced intrusion detection and tripwire functions with accurate human and vehicle classification. SMD Plus further filters event-based recordings so storage is used efficiently. Audio and alarm I/O on the ZAS variant add further integration options for access control and alarm systems.
IP67 & IK10 Weatherproof Construction
Rated IP67 for full dust ingress protection and resistance to water jets, and IK10 for resistance to heavy mechanical impact. This robust construction makes the camera suitable for exposed outdoor mounting positions, including high-traffic areas prone to vandalism or harsh Australian weather conditions.
Best For
- Commercial Car Parks: High-resolution 4K capture combined with licence plate-friendly varifocal zoom and IR night vision makes this ideal for monitoring vehicle entry, exit, and parking bay activity around the clock.
- Warehouse & Industrial Facilities: Perimeter protection and tripwire detection accurately identify unauthorised human or vehicle intrusion across large open areas, reducing false alarms from environmental movement.
- Retail Centres & Shopping Precincts: The combination of 4K detail and AI-based classification helps loss prevention teams identify persons of interest and review incidents with confidence.
- Building Perimeters & Access Points: Motorised remote zoom lets security operators refocus coverage zones from a control room without requiring a technician on-site, reducing ongoing maintenance costs.
- Education & Healthcare Campuses: Smart motion detection and audio I/O support integration with broader security management systems, providing a scalable solution across multi-building campuses.
Why Choose the IPC-HDBW3841R-ZAS
Budget fixed-focal dome cameras may offer adequate resolution, but they cannot match the flexibility, intelligence, or low-light capability of this Dahua WizSense 8MP motorised dome. The motorised varifocal lens alone sets it apart — installers can fine-tune the field of view remotely, eliminating costly return visits to adjust coverage. The integrated AI chip delivers genuine human and vehicle classification rather than relying on basic pixel-change motion detection, which means fewer false alarms and more actionable alerts. Starlight technology ensures the camera performs in low-light scenarios where cheaper sensors would produce grainy or unusable footage. With H.265+ compression, storage costs are kept under control even at 4K resolution. Security Wholesalers stocks this camera as part of a comprehensive Dahua IP range, making it straightforward to pair with compatible NVRs and accessories for a fully integrated surveillance system.
Package Inclusions
- 1 × Dahua DH-IPC-HDBW3841RP-ZAS-27135 8MP WizSense Motorised Varifocal Dome Network Camera
Buyer Decision Tips
Buyer Tip: This model outputs 8MP at up to 20fps when AI functions are active, or up to 25/30fps when AI is disabled. If your application requires maximum frame rate — such as capturing fast-moving vehicles — consider disabling AI features in the camera settings and relying on your NVR for event filtering instead.
Buyer Tip: Note that audio input/output and alarm I/O are only available on the ZAS variant of this camera. If your installation requires integration with external sirens, intercoms, or alarm panels, confirm you are purchasing the ZAS model specifically rather than the standard version.
Key Features & Technical Specifications
| Model | DH-IPC-HDBW3841RP-ZAS-27135 |
| Resolution | 8MP (3840 × 2160) |
| Image Sensor | 1/2.8″ CMOS |
| Frame Rate (AI Enabled) | Up to 20fps at 8MP |
| Frame Rate (AI Disabled) | Up to 25/30fps at 8MP |
| Lens Type | Motorised varifocal, 2.7–13.5mm |
| IR Distance | Up to 50m (as per product name; up to 40m per key features listing) |
| Video Compression | H.265, H.265+, H.264, H.264+ |
| AI Functions | Human & vehicle classification, intrusion detection, tripwire, SMD Plus |
| Smart Detection | Perimeter protection, smart motion detection |
| Abnormality Detection | Motion detection, video tampering, scene changing, audio detection, SD card alerts, network disconnection, IP conflict, illegal access, voltage detection |
| Alarm I/O | 1 input / 1 output (ZAS variant only) |
| Audio I/O | 1 input / 1 output (ZAS variant only) |
| Local Storage | Micro SD card, up to 256GB |
| Power Supply | 12V DC / PoE (IEEE 802.3af) |
| Protection Rating | IP67, IK10 |
| Special Features | Starlight technology, WDR, 3D DNR, HLC, BLC, ROI, digital watermarking, rotation mode |
| Series | Dahua WizSense 3 Series |
Ideal Use Cases
Commercial Car Parks
4K resolution and motorised zoom allow operators to read licence plates at distance, while IR night vision ensures round-the-clock coverage without additional lighting infrastructure.
Warehouse Perimeters
Tripwire and intrusion detection with human/vehicle classification provides reliable after-hours security across large open yard areas, triggering alerts only for genuine threats.
Retail & Shopping Centres
High-resolution footage supports loss prevention investigations and provides the evidence quality needed for police reporting and insurance claims.
Building Entrances & Access Control Points
The motorised lens can be refocused remotely as access arrangements change, with alarm I/O enabling direct integration with door controllers and intercom systems.
Education & Healthcare Campuses
Smart detection and scalable Dahua NVR compatibility make this camera well-suited to multi-building deployments requiring consistent, centrally managed surveillance coverage.
Choosing the Right Model
- Choose this model if: You need 4K AI-powered surveillance with a motorised varifocal lens, audio/alarm I/O, and robust weatherproof construction for a commercial or industrial site.
- Choose a different model if: You require the latest generation WizSense features — this model has been superseded by the Dahua DH-IPC-HDBW3866RP-ZAS-AUS, which offers updated 4K Starlight performance with WDR and enhanced AI capabilities.
- Choose a different model if: Your installation does not require a varifocal lens and a fixed-focal dome would provide sufficient coverage at a lower cost per camera.
FAQs
- What is the difference between 20fps and 25/30fps on this camera?
When AI functions such as human and vehicle detection are active, the camera outputs at a maximum of 20fps at full 8MP resolution. Disabling AI processing frees up the camera’s processing resources, allowing it to reach 25fps (PAL) or 30fps (NTSC). For most security applications, 20fps with AI enabled is entirely adequate and provides more intelligent event detection. - Is this camera compatible with third-party NVRs?
The camera supports ONVIF protocol, which allows basic compatibility with many third-party NVR systems. However, advanced features such as SMD Plus, perimeter protection, and AI-based detection are best utilised when paired with a compatible Dahua NVR that supports WizSense intelligent functions natively. - What does the ZAS suffix mean on this model?
The ZAS designation indicates this variant includes both audio input/output (1 in, 1 out) and alarm input/output (1 in, 1 out). These ports are absent on non-ZAS variants. If your installation requires integration with external alarms, intercoms, or audio monitoring, ensure you specify the ZAS model. - Can I use this camera outdoors in harsh Australian conditions?
Yes. The IP67 rating means it is fully protected against dust ingress and water jets from any direction, making it suitable for exposed outdoor mounting in rain, humidity, and dusty environments. The IK10 impact rating adds protection against physical vandalism, suitable for high-traffic areas. - How much local storage does this camera support?
The camera supports Micro SD cards up to 256GB. This allows for local edge recording as a backup to NVR storage or as a standalone recording option for smaller installations. SD card health is monitored, with alerts generated for card full, card error, or no card detected conditions. - Has this model been discontinued or replaced?
Yes — the IPC-HDBW3841R-ZAS has been superseded. The replacement model is the Dahua DH-IPC-HDBW3866RP-ZAS-AUS, which offers updated 4K Starlight performance. If you are planning a new installation, Security Wholesalers recommends reviewing the replacement model to ensure you benefit from the latest firmware support and feature set. - Does the motorised lens support remote focus and zoom from the NVR?
Yes. The motorised varifocal lens can be controlled remotely via a compatible Dahua NVR or through the camera’s web interface. This eliminates the need to physically access the camera to adjust the field of view, which is particularly valuable for cameras mounted at height or in difficult-to-access locations. - What is SMD Plus and how does it help reduce false alarms?
SMD Plus (Smart Motion Detection Plus) is Dahua’s AI-enhanced motion detection feature that filters detected motion events by classifying them as human, vehicle, or other. Only events matching the configured target type trigger recordings or alerts, significantly reducing the volume of false alarms caused by animals, lighting changes, or swaying vegetation.
Additional Information
- IPC-HDBW3841R-ZAS Spec Sheet
- THIS HAS BEEN REPLACED BY: Dahua 8MP DH-IPC-HDBW3866RP-ZAS-AUS 4K Starlight IP Dome Motorised WDR IR 40m
























