The Dahua SDT4E425-4F-GB-A-PV1 delivers a dual-lens TiOC WizSense PTZ solution designed for intelligent perimeter surveillance across commercial, industrial, and carpark environments. Featuring a 4MP panoramic lens paired with a 4MP STARVIS detail lens, it combines wide-area coverage with 25x optical zoom for precise target identification at distance. Equipped with Auto Tracking 3.0, it automatically follows human or vehicle targets while maintaining stable focus. Active deterrence via red and blue strobe lights and a built-in siren provides real-time intrusion response, with smart dual-light IR extending night vision coverage to 100 metres.
Key Features
Dual-Lens Design: Combines a 4MP panoramic lens for wide-area coverage with a 4MP STARVIS detail lens for precision zoom tracking.
25x Optical Zoom: Motorised zoom captures facial features, licence plates, and activity detail from significant distances.
Auto Tracking 3.0: AI-powered tracking automatically follows human or vehicle targets while maintaining accurate, stable focus.
Active Deterrence: Red and blue warning strobes and a built-in siren activate upon detection to deter intruders in real time.
Perimeter Protection: Virtual tripwire and intrusion detection with AI filtering reduces false alarms by targeting people and vehicles only.
Smart Dual Light: Switches between infrared and white light based on scene conditions, providing effective night vision to 100 metres.
Combining a 4MP fixed panoramic lens with a 4MP STARVIS motorised PTZ detail lens in one housing, the Dahua SDT4E425-4F-GB-A-PV1 is built for commercial and industrial sites where wide-area context and precise zoom identification are both required simultaneously. The panoramic lens delivers a 101-degree horizontal field of view across the full scene, while the 25x optical zoom detail lens can lock onto subjects up to 100 metres away in complete darkness using Smart Dual Light+ and infrared illumination. Auto Tracking 3.0 follows human or vehicle targets automatically, reducing the need for manual operator control during events. When a virtual tripwire or intrusion zone rule is triggered, TiOC active deterrence activates red and blue strobe lights and a built-in siren to intercept threats in real time. IP66-rated and rated for operation from -40 degrees C to +65 degrees C, this camera is suited to carparks, warehouse perimeters, industrial yards, and large retail facilities across Australian outdoor environments.
Key Capabilities
Dual-Lens Simultaneous Coverage
One camera produces 2 independent 4MP streams at the same time: a fixed 101-degree panoramic view of the entire scene and a motorised PTZ detail feed that can zoom in anywhere within that scene. This removes the trade-off that comes with single-lens PTZ units where zooming in always loses the wider picture.
25x Optical Zoom Detail Lens
The motorised PTZ lens covers 5.0mm to 125.0mm without digital cropping, maintaining full 4MP resolution at maximum zoom. This allows facial features, licence plates, and specific activity to be captured clearly at distances that would be impossible for fixed cameras or lower-ratio zoom lenses.
Auto Tracking 3.0
AI-enhanced tracking identifies people and vehicles as specific target classes and follows them continuously across the scene. Compared to basic motion-triggered PTZ movement, Auto Tracking 3.0 maintains more stable focus on the correct subject and reduces lost-target events when multiple objects are moving at once.
TiOC Active Deterrence
On detection of a confirmed intrusion event, the camera activates red and blue strobe lights alongside a built-in audible siren. This active response is designed to interrupt and deter intruders at the moment of detection rather than simply recording the event for later review.
Smart Dual Light+ Night Performance
The camera switches automatically between infrared and white light based on scene conditions. IR coverage extends to 100 metres for reliable monochrome imaging in total darkness, while the Starlight-capable STARVIS sensor in the detail lens operates down to 0.005 lux for clear low-light performance without supplemental lighting.
WizSense AI Perimeter Filtering
Virtual tripwire and intrusion detection rules are filtered by WizSense AI, which classifies targets as people or vehicles before triggering an alert. This substantially reduces false alarms caused by animals, foliage, or lighting changes, keeping security responses focused on genuine intrusion events.
Best For
Commercial Carparks: The 101-degree panoramic lens covers full drive lanes while the 25x PTZ detail lens can zoom in to capture vehicle registration plates or track individuals across multiple bays without camera repositioning.
Industrial Yard and Warehouse Perimeters: Wide panoramic coverage monitors the full site perimeter while Auto Tracking 3.0 follows any individual who breaches a virtual tripwire zone into a restricted area.
Outdoor Entry and Gate Points: Active deterrence lights and siren provide an immediate on-site response when an intrusion detection rule is triggered, intercepting threats before they reach secure areas.
Large Retail and Shopping Centre Exteriors: Dual-lens output allows security staff to maintain a full-scene overview through the panoramic feed while simultaneously reviewing zoomed detail on specific individuals or incidents.
Sites Requiring Overnight Outdoor Coverage: The STARVIS sensor, Smart Dual Light+, and 100m IR range sustain usable image quality throughout the night in environments with little or no ambient lighting.
Why Choose the SDT4E425-4F-GB-A-PV1
Standard PTZ cameras force a choice between scene overview and zoom detail. The SDT4E425-4F-GB-A-PV1 removes that constraint by running the 4MP panoramic lens and the 4MP 25x optical zoom PTZ lens as simultaneous independent streams, both recordable to separate NVR channels. Auto Tracking 3.0 reduces the need for operator intervention, following confirmed human and vehicle targets without manual PTZ control. The TiOC active deterrence system goes beyond recording by triggering strobe lights and an audible siren the moment a perimeter rule fires. Two-way audio is also supported via the built-in microphone and speaker, allowing voice warnings directly from the camera. Built to IP66 with an operating range of -40 degrees C to +65 degrees C, it handles harsh outdoor Australian conditions across all seasons. This camera is available through Security Wholesalers as part of the professional Dahua IP PTZ range.
Buyer Decision Tips
Buyer Tip: This camera requires PoE+ (IEEE 802.3at), which supplies up to 30W per port. Standard PoE (IEEE 802.3af) is limited to 15.4W and will not power this unit. Before purchasing, verify that every switch port, NVR PoE port, or inline injector you plan to use is rated for PoE+ at the required wattage. Do not assume all PoE-capable switches support 802.3at on every port.
Buyer Tip: The panoramic lens has a fixed 2.8mm focal length and cannot be adjusted. Mount this camera at a height and angle where the panoramic lens captures the complete area of interest from a single fixed position. The PTZ detail lens will then be able to zoom into any part of that scene automatically during Auto Tracking or operator-directed events. Getting the mounting position right at installation is critical to getting the most from both lenses.
The fixed 101-degree panoramic lens records the full carpark layout continuously while the 25x PTZ detail lens zooms in to capture licence plates or track individuals across bays. Both streams record independently, preserving the wide-area context alongside the zoomed detail for any incident review.
Warehouse and Industrial Yards
Wide panoramic coverage monitors large outdoor areas while Auto Tracking 3.0 automatically follows personnel or vehicles that cross a virtual tripwire into a loading dock or restricted zone, with the STARVIS detail lens maintaining clear imagery down to 0.005 lux.
Perimeter Fencing and Gate Lines
WizSense AI filters intrusion detection events to people and vehicles only, and on a confirmed trigger, the TiOC active deterrence system fires strobe lights and siren immediately. This makes the camera suitable for unmanned boundary points where an instant on-site response is needed without security staff being physically present.
Retail and Shopping Centre Exteriors
Security operators can monitor customer flow through the panoramic feed while directing the PTZ detail lens onto a specific individual or transaction area. Two-way audio via the built-in microphone and speaker also allows voice communication directly from the camera position.
Overnight Outdoor Surveillance
Smart Dual Light+ selects between IR and white light illumination based on scene context, and the 100m IR range ensures usable monochrome imaging in complete darkness. The IP66 rating and -40 to +65 degree C operating range keep the camera functional across Australian conditions year-round.
Choosing the Right Model
Choose this model if: Your site requires both a permanent wide-area overview and high-detail 25x optical zoom PTZ tracking from a single camera position, with active deterrence and AI-filtered perimeter protection for outdoor commercial or industrial use.
Choose a different model if: You only need standard single-lens PTZ zoom without a simultaneous panoramic feed, your network infrastructure does not support PoE+ (802.3at) and upgrading is not planned, or your installation site does not require active deterrence as part of the camera unit.
FAQs
What is the practical difference between the panoramic lens and the PTZ detail lens on this camera? The panoramic lens is fixed at 2.8mm with a 101-degree horizontal field of view and records continuously, giving you the full scene at all times. The PTZ detail lens zooms from 5.0mm to 125.0mm using motorised 25x optical zoom and can be directed manually or automatically via Auto Tracking 3.0. Both lenses produce independent 4MP streams that can be recorded to separate NVR channels simultaneously.
Does this camera work with standard PoE switches? No. This camera requires PoE+ (IEEE 802.3at), which delivers up to 30W per port. Standard PoE (IEEE 802.3af) is capped at 15.4W and is insufficient to power this unit. You must confirm that every switch port, NVR PoE port, or inline injector connected to this camera is rated for 802.3at before installation.
How does WizSense AI filtering affect the active deterrence system? WizSense AI classifies detected objects as people or vehicles before confirming an intrusion event. This means the active deterrence strobe lights and siren are only triggered by confirmed human or vehicle targets, not by animals, wind-affected foliage, or lighting changes. On large outdoor sites where environmental false triggers are common, this filtering significantly reduces unwanted activations.
Can the panoramic and PTZ detail lenses be recorded to separate NVR channels? Yes. Both lenses generate independent video streams, and a compatible NVR can record each stream to a separate channel. This preserves the full 101-degree panoramic scene recording alongside the zoomed PTZ detail footage, allowing operators to review both perspectives independently when investigating an event.
What does Auto Tracking 3.0 improve compared to earlier PTZ auto-tracking? Auto Tracking 3.0 uses AI-based target classification to identify people and vehicles specifically, rather than reacting to any motion in the scene. This produces more stable and accurate subject following, reduces instances of the camera losing the target when multiple objects are moving, and avoids unnecessary PTZ movement triggered by non-human environmental changes.
Is this camera suitable for Australian outdoor conditions including extreme heat? Yes. The IP66 rating protects against dust ingress and direct water jets, and the operating temperature range of -40 degrees C to +65 degrees C covers all realistic Australian outdoor environments including exposed northern and outback sites where summer ambient temperatures regularly exceed 45 degrees C. No additional enclosure is required for typical outdoor Australian installations.
Does this camera support two-way audio? Yes. The SDT4E425-4F-GB-A-PV1 has both a built-in microphone and a built-in speaker, enabling real-time two-way voice communication directly from the camera. This can be used for verbal warnings to individuals in the monitored area or for communication between an operator and someone at the camera location.
Where can I purchase the DH-SDT4E425-4F-GB-A-PV1 in Australia? This camera is stocked and supplied by Security Wholesalers, an Australian distributor of professional-grade Dahua IP cameras. Purchasing through a local authorised supplier ensures you receive a genuine product with access to Australian warranty support and local technical assistance for installation queries.
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Everything you need to choose the right Dahua TiOC camera for your needs.
1. What is Dahua TiOC?
Dahua’s TiOC (Three-in-One Camera) series combines full-colour imaging, active deterrence, and advanced AI analytics. This all-in-one solution delivers 24/7 colour monitoring, proactive security through strobe lights and sirens, and intelligent detection of humans and vehicles, significantly reducing false alarms.
As a Trusted Dahua Authorised Store, SecurityWholesalers.com.au is more than just a reseller — we’re a nationally recognised partner delivering genuine Dahua solutions, backed by expert technical support and deep industry knowledge.
Our team supports systems across all major sectors — including residential homes, commercial businesses, schools, government infrastructure, warehouses, and local councils. When you choose us, you’re selecting a Dahua-certified partner with a proven track record in performance, reliability, and customer satisfaction.
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At SecurityWholesalers.com.au, we’re committed to more than just competitive pricing — we offer true partnership and protection through every stage of your Dahua journey. We’re not your average security equipment supplier — choose the team that industry professionals trust.
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Dahua DH-SDT4E425-4F-GB-A-PV1 X-Spans 4MP+4MP 25x TiOC WizSense Network PTZ Camera
