The Dahua DH-SDT4E425-8P-GB-APV1 delivers a dual-sensor PTZ solution combining an 8MP 180-degree panoramic lens with a 4MP 25x optical zoom module, designed for large-area surveillance where both wide-angle context and fine detail are required. Equipped with STARVIS CMOS sensors and Smart Dual Light technology, it provides clear imaging across distances up to 100m using IR and white light illumination. Auto Tracking 3.0 intelligently follows moving subjects, keeping them in frame without manual intervention. Active deterrence capabilities, including strobe lighting and an audible alarm, make this camera well suited to high-risk or perimeter security applications.
Key Features
Dual Sensor Design: Combines an 8MP panoramic lens with a 4MP PTZ lens for simultaneous wide-area and detailed zoomed monitoring in a single unit.
25x Optical Zoom: High-ratio optical zoom allows distant objects to be captured with clarity without any loss in image quality.
180-Degree Panoramic View: Stitched ultra-wide-angle coverage eliminates blind spots and maximises situational awareness across large open areas.
Auto Tracking 3.0: AI-powered motion tracking automatically follows moving targets for continuous focus and reliable evidence capture.
Smart Dual Light: Automatically switches between IR and white light illumination based on detected people or vehicles, improving both clarity and deterrence.
Active Deterrence: Integrated strobe lighting and audible alarm deter intruders and provide real-time alerts before threats can escalate.
Wide-area monitoring across a large perimeter or industrial yard has traditionally required one fixed panoramic camera for scene context and a separate PTZ for detail and tracking. The Dahua X-Spans DH-SDT4E425-8P-GB-APV1 combines both functions in a single housing, pairing an 8MP 180-degree panoramic sensor with a 4MP 25x optical zoom PTZ module. This means the full scene is always on record, even while the PTZ is actively following a target. Featuring STARVIS CMOS sensors, Auto Tracking 3.0, and Smart Dual Light with IR coverage up to 100m, this camera is built for demanding outdoor environments including perimeter fence lines, open yards, car parks, and critical infrastructure sites. The TiOC 2.0 active deterrence system adds flashing lights and an audible alarm for real-time intrusion response. WizSense AI classifies detected motion as either a person or vehicle, keeping alert rates focused on events that warrant attention.
Key Capabilities
8MP + 4MP Dual-Sensor Architecture
An 8MP panoramic sensor and a 4MP PTZ module share a single housing, eliminating the gap that standard PTZ cameras create when zoomed in. The panoramic channel maintains continuous wide-angle recording while the PTZ channel tracks or inspects specific targets independently.
25x Optical Zoom PTZ Module
The 4MP PTZ module delivers 25x optical zoom, enabling operators to capture usable identification-grade detail across large distances. Whether monitoring a sprawling car park or a wide industrial yard, subjects at range can be zoomed into without degrading image quality or losing the panoramic view.
180-Degree Panoramic Coverage
The 8MP panoramic lens provides a seamlessly stitched 180-degree field of view that eliminates blind spots across open areas. This is particularly valuable at building entrances, loading docks, and perimeter lines where a single fixed lens cannot cover the full scene without multiple camera positions.
Auto Tracking 3.0
Dahua’s Auto Tracking 3.0 uses AI-driven motion analysis to lock onto a detected person or vehicle and follow it continuously across the scene. This removes the need for manual PTZ operator control during live incidents and ensures uninterrupted footage of moving subjects for evidence purposes.
Smart Dual Light – 100m IR
The Smart Dual Light system automatically switches between IR and white light illumination based on what is detected in the scene. Standard monitoring runs in IR mode, switching to white light when a person or vehicle is confirmed, providing full-colour footage and a visible deterrent response out to 100m.
TiOC 2.0 Active Deterrence
Built-in flashing lights and an audible alarm activate upon person or vehicle detection, warning intruders in real time before a situation escalates. This proactive response capability makes the camera appropriate for after-hours or unattended high-risk sites where passive recording alone is insufficient.
Best For
Large Commercial Perimeters: The 180-degree panoramic view combined with 25x optical zoom delivers full fence-line or boundary coverage with the ability to zoom in on intrusion events as they happen.
Industrial Yards and Loading Docks: Long-range IR up to 100m and wide panoramic coverage suit open yard environments where standard fixed cameras leave significant gaps overnight.
Critical Infrastructure Sites: Power facilities, utilities, and government sites benefit from Auto Tracking 3.0 and TiOC 2.0 active deterrence for proactive, low-false-alarm threat response.
Multi-Lane Car Parks and Transport Hubs: The dual-sensor design records overall traffic flow panoramically while the PTZ channel independently tracks individual vehicles or persons of interest with optical zoom.
Construction Sites: After-hours intrusion detection with active deterrence and Auto Tracking 3.0 provides both deterrence and continuous evidence capture where trespass and theft are ongoing concerns.
Why Choose the DH-SDT4E425-8P-GB-APV1
A conventional PTZ camera creates a fundamental coverage gap: when the PTZ pans or zooms, the wide-angle context is lost entirely. The DH-SDT4E425-8P-GB-APV1 resolves this by running an 8MP 180-degree panoramic channel and a 4MP 25x optical zoom PTZ channel simultaneously from a single device. Both streams can be recorded concurrently, meaning post-incident review retains full scene context regardless of where the PTZ was pointed at the time. STARVIS CMOS sensors across both modules ensure strong low-light performance, while the 100m IR range extends usable night coverage beyond what most comparable single-sensor PTZ cameras offer. WizSense AI filters detections to confirmed people and vehicles, reducing nuisance alerts from environmental motion. The TiOC 2.0 active deterrence output adds an immediate on-site response layer without requiring a separate alarm device. Available at Security Wholesalers, this camera suits sites where deploying two separate cameras is impractical, cost-prohibitive, or structurally constrained.
Buyer Decision Tips
Buyer Tip: The DH-SDT4E425-8P-GB-APV1 operates as a multi-sensor camera with 2 independent streams, one panoramic and one PTZ. Your NVR must support multi-sensor or dual-stream camera inputs to record both channels simultaneously. Confirm NVR compatibility before purchasing to ensure neither stream is left unrecorded during normal operation.
Buyer Tip: The TiOC 2.0 active deterrence output, flashing lights and audible alarm, is most effective when the camera is mounted at a height that keeps the deterrence output within clear line-of-sight of a person at ground level. Mounting at extreme elevation reduces the perceived intensity of the strobe and audio at entry points. Factor mounting height into your site design when deterrence is a primary requirement.
WizSense – Smart Motion Detection, person and vehicle classification
Active Deterrence
Flashing lights and audible alarm
Weather Protection
IP66
Ideal Use Cases
Perimeter Fence Lines
The 180-degree panoramic sensor covers extended fence lines without blind spots, while the 100m IR range ensures night-time detection at range. Auto Tracking 3.0 follows any confirmed intruder automatically once they enter the scene.
Industrial Yards and Loading Docks
Wide panoramic coverage handles overall yard awareness while the 25x optical zoom PTZ allows operators to examine vehicle movements, access points, or personnel activity at distance without needing a second camera position.
Open Car Parks
Simultaneous panoramic and PTZ recording ensures no area of a large car park falls outside coverage. The TiOC 2.0 active deterrence output discourages after-hours trespassing and vehicle-related incidents before they escalate.
Critical Infrastructure
Power stations, water treatment sites, and government facilities need proactive detection and response. WizSense person and vehicle classification keeps alerts accurate, while TiOC 2.0 active deterrence provides an immediate on-site response layer.
Large Retail Forecourts and Precincts
A single X-Spans unit covers expansive forecourts or shopping centre exteriors with both wide-angle context and zoomed identification capability, reducing the number of camera positions required and simplifying installation infrastructure.
Construction Sites
After-hours trespass and equipment theft are common on active construction sites. Auto Tracking 3.0 maintains continuous footage of moving intruders, while the TiOC 2.0 audible alarm and flashing lights provide an immediate deterrence response at the point of detection.
Choosing the Right Model
Choose this model if: Your site requires simultaneous 180-degree panoramic recording and 25x optical zoom PTZ tracking from a single device, with TiOC 2.0 active deterrence and long-range IR up to 100m for large or high-risk outdoor environments.
Choose a different model if: Your site only needs a single-channel PTZ without panoramic context recording, your NVR does not support multi-sensor dual-stream inputs, or your budget and installation scope favour a simpler single-sensor outdoor PTZ solution.
FAQs
How does the X-Spans dual-sensor design solve the blind spot problem that standard PTZ cameras have? A standard PTZ camera loses wide-angle scene context the moment it pans or zooms toward a target. The DH-SDT4E425-8P-GB-APV1 runs an 8MP 180-degree panoramic channel and a 4MP PTZ channel simultaneously. Both streams can be recorded at the same time, so the full scene remains on record regardless of where the PTZ is directed during an active tracking event.
What NVR is required to get full dual-stream recording from this camera? Because the DH-SDT4E425-8P-GB-APV1 presents as a multi-sensor device with 2 independent video streams, your NVR must support multi-sensor or dual-stream camera inputs to record both the panoramic and PTZ channels simultaneously. Confirm this capability with your NVR specification before purchasing. Security Wholesalers can provide guidance on compatible Dahua NVR models suited to this camera.
What does Auto Tracking 3.0 do and when does it activate? Auto Tracking 3.0 is Dahua’s AI-based motion tracking system built into the PTZ module. When a person or vehicle is detected in the scene, the PTZ automatically locks onto that target and follows it continuously across the field of view in real time. This removes the need for manual operator control during live events and ensures uninterrupted footage of a moving subject from detection through to exit.
How does Smart Dual Light work at night on this camera? During general monitoring, the camera operates in IR mode, providing discreet low-profile illumination. When WizSense AI confirms a person or vehicle is present in the scene, the Smart Dual Light system switches to white light, delivering full-colour footage and triggering a visible deterrence response. This automatic switching occurs in real time and covers distances up to 100m.
What exactly does the TiOC 2.0 active deterrence system do when triggered? When a person or vehicle detection event is confirmed, the TiOC 2.0 system activates built-in flashing lights and an audible alarm. These outputs are designed to alert and deter an intruder in real time at the point of detection, before a security situation escalates. This is distinct from passive recording and makes the camera appropriate for unattended high-risk sites requiring an on-site response mechanism.
Does the 180-degree panoramic view require multiple lenses and does it stitch automatically? Yes. The 8MP panoramic sensor uses a multi-lens arrangement to capture the full 180-degree horizontal field of view. The panoramic image is seamlessly stitched in-camera, so operators and recording systems receive a single continuous wide-angle stream without manual stitching or post-processing required at the NVR or VMS level.
Is the DH-SDT4E425-8P-GB-APV1 suitable for permanent outdoor installation in Australian conditions? Yes. The camera carries an IP66 weather protection rating, making it suitable for permanent outdoor installation in rain, dust, and the variable conditions typical of Australian commercial and industrial sites. The housing is designed for mounting on walls, poles, or ceilings in exposed outdoor environments across the full range of deployment types this camera is built for.
All Dahua IP cameras and recording devices (NVRs/DVRs) are covered by a
3-year back-to-base manufacturer warranty.
Note: Disk drives are limited to a 3-year warranty.
Our warranty is limited to the replacement of faulty items or parts
and does not include damage caused by incorrect fitting of parts or accessories.
(a) Australian Consumer Law (ACL)
Certain legislation, including the Australian Consumer Law (ACL) in the Competition and Consumer Act 2010 (Cth), and similar consumer protection
laws and regulations may confer you with rights, warranties, guarantees, and remedies
relating to the provision of goods or services to you by us via the Site which cannot
be excluded, restricted, or modified. Our liability is governed solely by the ACL and
these Terms.
(b) Goods
If you are a consumer as defined in the ACL, the following notice applies to you:
“Our goods come with warranties and guarantees that cannot be excluded under the
Australian Consumer Law (Consumer Guarantees). You are entitled to a replacement or
a refund for a major failure and for compensation for any other reasonably foreseeable
loss or damage. You are also entitled to have the goods repaired or replaced if the
goods fail to be of acceptable quality and the failure does not amount to a major
failure.”
(c) Our Warranties
To the extent permitted by law, we exclude all express and implied warranties,
and all material and work is provided to you without warranties of any kind,
either express or implied. We expressly disclaim all warranties including but
not limited to implied warranties of merchantability and fitness for a particular
purpose.
(d) Manufacturer Warranties
Certain products, including particular models of IP security cameras and DVR/NVR
equipment, may come with a manufacturer’s warranty. The manufacturer’s warranty is
in addition to but may overlap with any rights and remedies you may have under
applicable law, including any Consumer Guarantees. If you are not considered a
“consumer” within the meaning of the ACL, the manufacturer’s warranty may be your
sole remedy. Many manufacturers’ warranties do not apply in a business or commercial
setting. Please contact the manufacturer if you would like to make a claim under
the manufacturer’s warranty.
(e) Repair, Replacement, or a Refund
If you wish to seek repair, replacement, or a refund for a product, please
contact us and we will explain the requirements to you. This may include you
providing evidence of the faulty product to us.
(f) Refund
You are not entitled to a refund for change of mind. If you are entitled to a
refund, we will only provide it once evidence of the faulty product is received
by us, or once we have received the product at our warehouse and inspected it
to assess whether it is eligible for a refund under these Terms. Any refund we
make will be by the same payment method used to purchase the product.
(g) Installed Products
Subject to this clause, we will not accept for return any product that has been
used, connected, installed, attempted to be connected or installed, or if your
product is custom-made or is a special buy product.
(h) Packaging
You must adequately package any product you are returning for our collection
to ensure that it is not damaged during return delivery to our warehouse. You
are also responsible for arranging the return delivery and the costs involved.
(i) Duty of Care
You have a duty of care for the product while it is in your possession. If
you damage products and then subsequently return them, you may be liable to pay
to repair the product to its original condition. In these circumstances, where
a repair is not economically viable, no refund will be made.
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.
Official Dahua Product Support
Get access to genuine Dahua technical resources and support, delivered by trained professionals who work with these systems daily.
Comprehensive System Assistance
From product selection to setup, configuration, remote access support, and firmware upgrades — we offer step-by-step guidance to ensure your system is optimal.
Reliable After-Sales Service
We provide continued support for configuration, troubleshooting, and warranty claims. Whether you’re a first-time user or a seasoned installer, we ensure your Dahua system operates flawlessly.
Genuine Products & Fast Dispatch
All Dahua stock is sourced from authorised Australian distributors and shipped promptly from our local warehouse. No delays, no grey-market risks, no international return hassles.
Industry-Wide Trust
Our clients range from councils and schools to enterprise businesses and security professionals — all trusting us for exceptional service, product reliability, and expert advice.
Real-World Security Expertise
Unlike generic electronics stores, we specialise in security. Our team includes qualified installers and consultants offering tailored recommendations based on real-world experience — not just inventory lists.
3 Years Manufacturer Warranty
Ensuring your security system remains reliable for years to come.
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.
At SecurityWholesalers.com.au, we prioritise fast and reliable delivery across Australia. Whether you’re ordering for home or business, you can expect professional service, tracked shipments, and speedy fulfilment — every time.
✔ FREE Shipping Australia-Wide on Orders Over $100
Enjoy free express shipping on all orders over $100. For orders under $100, a flat rate of $20.00 applies. We proudly offer nationwide delivery using trusted courier partners for your peace of mind.
✔ Same-Day Despatch for Fast Delivery
Place your order before 10am (Sydney time) on any business day and we’ll do our best to despatch it the same day, subject to stock availability. We receive new stock into our warehouse every second day, so we always strive to ship the freshest arrivals directly to you. Most orders are received within 1-3 business days via the Express Post network, covering Australian capital cities and major metro areas. Deliveries to regional locations typically take 2–5 business days.
For urgent orders, please contact our customer care team to expedite the delivery and ensure that we can get your equipment to your project site on time.
✔ Reliable Couriers You Can Trust
We primarily use StarTrack Express for fast, secure shipping. Depending on warehouse availability, we may also use Toll or Couriers Please — whichever gets your order to you fastest.
✔ Order Processing & Tracking
Orders are processed Monday to Friday (excluding public holidays) and shipped within 24 hours. Tracking numbers are emailed to you by 11pm on the day your order ships. You can monitor your delivery through:
✔ Missed a Delivery?
If you’re not home at the time of delivery, your parcel will be left in a secure location if considered safe. If not, a collection card will be left and the parcel will be held at the nearest depot or post office for pickup.
✔ Need Help?
If you haven’t received your order within 4 business days, please contact us with your full name and order number. We’ll follow up promptly. Also, be sure to check your email spam folder for shipping notifications or attempted delivery messages.
Trade Discounts Available
Want even more savings? Register instantly for a Trade Account and, once approved, you’ll gain access to exclusive discounts on a wide range of products. It’s our way of supporting installers, resellers, and industry professionals with better pricing and priority service.
Your Shopping Cart will be saved and you'll be given a link. You, or anyone with the link, can use it to retrieve your Cart at any time.
Back
Save & Share Cart
Your Shopping Cart will be saved with Product pictures and information, and Cart Totals. Then send it to yourself, or a friend, with a link to retrieve it at any time.
Your cart email sent successfully :)
Dahua DH-SDT4E425-8P-GB-APV1 X-Spans 8MP+4MP 25x TiOC WizSense Network PTZ Camera
$950.00$1,100.00 inc GST +3 Year Warranty & Support
