X-Spans Panoramic PTZ · 8+4 MP · 25× Zoom · TiOC · 5-Year AU Warranty
Dahua DH-SDT4E425-8P-GB-APV1 — 8+4 MP 25× X-Spans Panoramic TiOC PTZ Camera with Xinghan AI & Active Deterrence
The Dahua DH-SDT4E425-8P-GB-APV1 is an X-Spans series multi-sensor panoramic PTZ — two cameras inside one IP66, surge-protected housing. The overview channel is an 8 MP 1/2.7" CMOS with a 2.8 mm F1.4 lens spliced across a true 180° horizontal field of view, capturing the entire scene at all times. The detail channel is a 4 MP 1/2.8" CMOS PTZ with 5 – 125 mm F1.6 – F3.6 motorised optics, 25× optical zoom and 16× digital zoom — capable of detecting a target at 2500 m and identifying it at 250 m. Starlight low-light sensors push usable colour down to 0.005 lux. Dual-light arrays give the panoramic head 30 m IR + 30 m white, and the PTZ head 100 m IR + 50 m warm-light reach.
This camera is built for Australian sites where you would otherwise install two cameras — large carparks, school grounds, freight yards, transport hubs, depots, mining laydowns and council reserves — and want one head that maintains constant 180° awareness while a second head slews onto whatever the AI flags. Smart Tracking links the two channels so the PTZ automatically zooms onto any target the overview detects, then keeps tracking after the target leaves the panoramic FOV using Dahua's X-Spans relay tracking. Edge AI runs the new Xinghan Large-Scale AI Models with WizSense perimeter protection, SMD 4.0 and AcuPick. Active deterrence stacks red/blue light warning with 11 built-in alarms (plus 10 custom uploads) and a built-in speaker. Power is PoE+ (802.3at) or 12 VDC 3 A. Backed by a 5-year Australian warranty through CCTV Guru.
Optical Zoom
25× + 16× Digital
Dual Sensor
8 MP + 4 MP Starlight
Smart Dual Light+
IR 100 m · Warm 50 m
AI Engine
Xinghan + AcuPick
Active Deterrence
TiOC Strobe + Siren
Power
PoE+ 802.3at / 12 VDC
5-Year Australian Warranty
Fast Australia-Wide Shipping
See the Dahua TiOC PRO Platform in Action
This is Dahua's official TiOC PRO highlight — the same active-deterrence platform that runs on the SDT4E425-8P-GB-APV1's PTZ head. Red/blue light warning, audible alarms, smart dual light and full AI classification working together to challenge intruders the moment they're detected.
Why Choose the Dahua SDT4E425-8P-GB-APV1
Buying a panoramic PTZ replaces two traditional cameras with one head. Below are the six reasons this specific X-Spans build is the one Australian integrators ask for when they want the dual-camera concept to actually work in the field — not the corner-case PoC demos.
180° Awareness, Always-On
The 8 MP overview channel is permanently recording a true 180° splice — so when the PTZ is steered onto a target, you don't lose situational awareness of the rest of the scene like you would with a single PTZ alone.
25× Optical Zoom · 250 m Identify Range
The detail PTZ runs 5 – 125 mm motorised optics with auto and semi-auto focus. DORI identify distance is 250 m at the tele end — long enough to read clothing and recognise faces across an entire carpark or paddock approach.
Smart Tracking Without Operator Intervention
WizTracking, relay tracking and linkage tracking work together so the PTZ automatically slews, zooms and follows whatever the overview channel's AI classifies as a person or vehicle — then keeps tracking after the target leaves the panoramic FOV.
TiOC Active Deterrence on a PTZ
Most active-deterrence cameras are fixed bullets or turrets. This camera mounts the full TiOC stack — red/blue strobe, 11-sound audible alarm library and built-in speaker — on a 25× PTZ that can challenge an intruder anywhere in its hemisphere.
Xinghan AI on the Edge
Xinghan Large-Scale AI Models bring transformer-architecture AI to the edge — joint inference between small and large models lets a single camera classify, track and respond on-device rather than depending on server-side compute.
Built for Harsh Australian Outdoor
IP66 sealed against driving rain, TVS 6000 V lightning + surge + voltage-transient protection, and rated operating range from –40 °C to +65 °C. Suitable for everything from Alpine highway sites through to the Pilbara.
Important Install Note — PoE+ Required
This camera draws a maximum of 25 W when illuminator, heater, active deterrence, ICR and PTZ are all active. It requires 802.3at PoE+, not standard 802.3af. On any deployment longer than 90 m, factor in cable resistance — for runs approaching the 100 m Ethernet limit we recommend either a local 12 VDC 3 A supply at the camera or a quality 802.3at midspan injector rather than relying on an underspecified PoE+ switch budget. The pre-included PFA150 pole-mount bracket is the standard option; wall, ceiling, parapet and corner brackets are listed in the Compatible Mounts section below.
AI & Smart Detection Capabilities
Xinghan Large-Scale AI Models
Dahua's newest edge AI generation — lightweight transformer architecture with model distillation and quantisation. The camera runs joint inference between small and large models to handle multiple simultaneous AI tasks with lower compute draw.
AcuPick Attribute Search
The overview channel supports AcuPick — when paired with a Dahua AcuPick NVR, you can search recorded video by colour, clothing, vehicle type and direction. Massively reduces investigation time.
Smart Tracking — Three Modes
WizTracking handles AI-driven human/vehicle following. Relay tracking (X-Spans exclusive) continues tracking after the target leaves the overview's 180° field. Linkage tracking restricts following to targets visible in the overview.
Full WizSense IVS Library
Tripwire, intrusion, crossing-fence detection, loitering, abandoned/missing object, fast-moving, parking detection, people gathering, human alarm classification and linkage tracking. Each event can trigger a preset, tour, capture, record, email or auto-patrol routine.
TiOC Active Deterrence Stack
Red/blue light warning with three flash frequencies (high/medium/low) and 5 – 30 s duration. 11 built-in sound alarms plus 10 importable custom sounds. Built-in speaker with 0–100% volume and 1–10 play-count control.
SMD 4.0 + Auto Patrol
Smart Motion Detection 4.0 filters animal and foliage motion, leaving alerts on people and vehicles only. After an IVS alarm, the PTZ can auto-patrol up to 5 presets or a scan path to verify the scene without an operator touching the joystick.
PTZ Kinematics
360° Endless Pan
Continuous 360° pan rotation with no mechanical stop — the PTZ can follow a target through any heading without re-homing.
–15° to +90° Tilt with Auto Flip
Tilt range covers straight down to slightly above horizon. Auto-flip 180° lets the camera track a target passing directly underneath the housing without losing the view.
Variable Manual Speed
Manual control speed runs from 0.1°/s for fine framing through 180°/s pan and 90°/s tilt for rapid scene change. Preset speeds are user-configurable across the same range.
300 Presets · 8 Tours · 5 Patterns · 5 Scans
Up to 300 stored presets, 8 multi-stop tours (32 presets each), 5 recorded patterns (joystick-driven motion playback) and 5 line scans. Power-off memory keeps the position on reboot.
Technical Specifications
Overview Channel (Panoramic)
| Image Sensor |
1/2.7" CMOS |
| Maximum Resolution |
4096 (H) × 1860 (V) — 8 MP |
| Lens |
2.8 mm fixed |
| Maximum Aperture |
F1.4 |
| Field of View |
H: 180° · V: 86° |
| Min. Illumination |
0.005 lux @ F1.4 (colour) · 0.0005 lux @ F1.4 (B/W) · 0 lux (illuminator on) |
| IR / White Light |
30 m / 30 m |
| WDR |
DWDR |
| DORI Distance |
Detect 56 m · Observe 22.4 m · Recognise 11.2 m · Identify 5.6 m |
| ROM / RAM |
4 GB / 2 GB |
Detail Channel (25× PTZ)
| Image Sensor |
1/2.8" CMOS |
| Maximum Resolution |
2560 (H) × 1440 (V) — 4 MP |
| Lens |
5 mm – 125 mm motorised vari-focal |
| Optical Zoom |
25× |
| Digital Zoom |
16× |
| Maximum Aperture |
F1.6 – F3.6 |
| Field of View |
H: 51.9° – 3.0° · V: 39.7° – 2.2° · D: 63.1° – 3.7° |
| Focus Control |
Auto · Manual · Semi-Auto |
| Iris Control |
Auto · Manual · Iris Priority |
| Min. Illumination |
0.005 lux @ F1.6 (colour) · 0.0005 lux @ F1.6 (B/W) · 0 lux (illuminator on) |
| IR / Warm Light |
100 m / 50 m |
| WDR |
120 dB true WDR |
| DORI — Wide (5 mm) |
Detect 100 m · Observe 40 m · Recognise 20 m · Identify 10 m |
| DORI — Tele (125 mm) |
Detect 2500 m · Observe 1000 m · Recognise 500 m · Identify 250 m |
| Image Stabilisation |
Electronic Image Stabilisation (EIS) |
| ROM / RAM |
4 GB / 1 GB |
PTZ & Smart Tracking
| Pan Range |
0° – 360° endless |
| Tilt Range |
–15° to +90° (auto flip 180°) |
| Manual Speed |
Pan 0.1°/s – 180°/s · Tilt 0.1°/s – 90°/s |
| Preset Speed |
Pan 0.1°/s – 180°/s · Tilt 0.1°/s – 90°/s |
| Presets |
300 |
| Tours |
8 (up to 32 presets per tour) |
| Patterns |
5 |
| Scans |
5 |
| Idle Motion |
Preset · Pattern · Tour · Scan |
| Power-off Memory |
Yes |
| Smart Tracking |
WizTracking · Relay tracking (X-Spans) · Linkage tracking |
Intelligence, Video & Active Deterrence
| AI Platform |
Xinghan Large-Scale AI Models · WizSense |
| IVS |
Tripwire · intrusion · crossing-fence · loitering · abandoned/missing object · fast-moving · parking detection · people gathering · human alarm classification · linkage tracking |
| SMD |
SMD 4.0 |
| AcuPick |
Yes (overview channel) |
| Auto Patrol |
Up to 5 presets or scans triggered by IVS / SMD |
| Active Deterrence — Light |
Red/blue light warning · 5 – 30 s flash duration · high/medium/low frequency |
| Active Deterrence — Sound |
11 built-in alarms + 10 custom uploads · volume 0–100% · play 1–10 times |
| Video Compression |
Smart H.265+ · H.265 · Smart H.264+ · H.264B · H.264M · H.264H · MJPEG (sub stream 1) |
| Streaming |
3 streams (per channel) |
| Overview Main Stream |
4096 × 1860 @ 1 – 25/30 fps |
| Detail Main Stream |
2560 × 1440 / 1080p / 720p @ 1 – 25/30 fps |
| Bit Rate Control |
CBR · VBR |
| Video Bit Rate (Overview) |
H.264 128 kbps – 16,384 kbps · H.265 51 kbps – 13,312 kbps |
| Video Bit Rate (Detail) |
H.264 96 kbps – 16,384 kbps · H.265 38 kbps – 10,240 kbps |
| Privacy Masking |
Up to 24 areas (up to 8 in the same view) · multi-colour and mosaic options |
Audio, Alarm & Network
| Audio Compression |
PCM · G.711A · G.711Mu · G.726 · MPEG2-Layer2 · G.722.1 · G.729 |
| Audio Input |
1 channel — LINE IN, bare wire |
| Audio Output |
1 channel — LINE OUT bare wire · built-in speaker (mutually exclusive) |
| Alarm Input |
2 channels — on/off 0 – 5 VDC |
| Alarm Output |
1 channel |
| Alarm Linkage |
Capture · recording · email · preset · tour · pattern · alarm digital output · audio · warning light |
| Network Port |
RJ-45 (100 / 1,000 Base-T) |
| Network Protocols |
HTTP · HTTPS · TCP/IP · IPv4 · IPv6 · RTSP · UDP · SMTP · NTP · DHCP · DNS · DDNS · 802.1x · SSL · QoS · FTP · UPnP · ICMP · SNMP · IGMP · ARP · RTCP · RTP · PPPoE · RTMP · Bonjour · NFS |
| Interoperability |
ONVIF (Profile S, G, T) · CGI · SDK · P2P |
| Streaming Method |
Unicast / Multicast |
| Max Users |
20 (total bandwidth 64 Mbps) |
| Storage |
Micro SD up to 512 GB · FTP / SFTP · NAS |
| Management Software |
DMSS · DSS Pro |
| Mobile Client |
iOS · Android (DMSS) |
Power, Environment & Build
| Power Supply |
12 VDC, 3 A ± 10% · PoE+ (IEEE 802.3at) |
| Power Consumption |
Basic 14 W · Max 25 W (illuminator + heating glass + active deterrence + ICR + PTZ) |
| Operating Temperature |
–40 °C to +65 °C |
| Operating Humidity |
≤ 95% |
| Protection |
IP66 · TVS 6000 V lightning protection · surge protection · voltage transient protection |
| Product Dimensions |
194.2 mm × 160 mm × 311 mm (L × W × H) |
| Net Weight |
3.1 kg |
| Gross Weight |
4.6 kg |
| Certifications |
CE — EN 50130-4 · EN 55032 · EN 55035 · EN 61000-3-3 · EN IEC 61000-3-2 · EN 62368-1 · RCM (AU) |
| Australian Warranty |
5 Years (via CCTV Guru) |
How It Compares — X-Spans Dual-Head vs Traditional Two-Camera Install
Most sites that consider a panoramic PTZ are deciding between this one head and the traditional alternative — a fixed multi-sensor / fisheye for situational awareness, plus a separate single-PTZ for zoom and tracking, on two PoE drops. The table below contrasts both approaches on the deployment factors that actually move the budget.
| Factor |
SDT4E425-8P-GB-APV1 (this camera)
|
Traditional Two-Camera Install |
| Heads / Mounts |
One housing, one mount, one cable |
Two housings, two mounts, two cable runs |
| PoE Drops Required |
1 × PoE+ (802.3at) |
2 × PoE / PoE+ ports |
| NVR Channels Used |
2 (one per sensor on the same IP) |
2 |
| Tracking Co-ordination |
Native — relay + linkage tracking factory-tuned |
VMS-side rules or a separate auto-tracking integration |
| Active Deterrence |
On the PTZ head — strobe + siren + 2-way audio |
Usually only on the fixed sensor; PTZ remains silent |
| Power Budget |
25 W peak — one budgeted port |
2 × budgeted PoE / PoE+ ports |
| Install Time |
Half a day for one tradesperson |
Effectively two camera installs and alignments |
| Outdoor Rating |
IP66 · TVS 6000 V · –40 °C to +65 °C |
Depends on each camera choice — often weaker |
| Best For |
Carparks, school grounds, freight yards, depots, transport, mines, council reserves |
Constrained-budget retrofits where two existing cameras are already cabled |
Recommended NVR Pairings
A panoramic PTZ uses two NVR channels and benefits from full AcuPick attribute search on recorded footage. Below are four CCTV Guru-stocked Dahua AI NVRs that suit the deployments where this camera makes sense.
Dahua DHI-NVR5216-16P-AI/ANZ
5-Series AcuPick NVR · 16 channels · 16 PoE+ ports (1–8 ePoE) · 2 HDD bays · 1U · 384 Mbps incoming. The most common pairing — runs the PTZ on PoE+ plus 13 other fixed cameras around the site.
View Dahua NVR5216-16P-AI →
Dahua DHI-NVR5432-AI/ANZ
5-Series AcuPick NVR · 32 channels · 4 HDD bays · dual GbE NICs · dual HDMI + dual VGA · 1.5U. Enterprise-scale AcuPick across the entire estate — for sites running multiple X-Spans heads alongside fixed cameras.
View Dahua NVR5432-AI →
Dahua DHI-NVR5208-8P-AI/ANZ
5-Series AcuPick NVR · 8 channels · 8 built-in PoE ports · 2 HDD bays · 1U. Sized for a single-PTZ deployment alongside 4–6 fixed cameras — small business and high-end residential.
View Dahua NVR5208-8P-AI →
Dahua DHI-NVR4216-16P-AI/ANZ
4-Series WizSense AI NVR · 16 channels · 16 PoE ports · 2 HDD bays · 4K HDMI · Smart 2.0 AI. The value-pick 16-channel build for sites that don't need full 5-Series AcuPick attribute search.
View Dahua NVR4216-16P-AI →
Compatible Mounts & Accessories
PFA150 — Pole Mount
Included in the box. Mounts the camera to 60 – 110 mm diameter poles — light poles, fence posts, perimeter pylons. The default outdoor option for carpark and yard deployments.
PFB305W — Wall Mount
Heavy-duty wall mount bracket sized for the X-Spans housing. Use for façade, brick, render and tilt-slab walls. Pairs with the PFA126 or PFA114 adapters for awkward mounting geometries.
PFB303S — Parapet Mount
Mounts the camera over the edge of a parapet wall — common on flat-roof commercial buildings and warehouse roof-edges where there's no vertical wall to mount against.
PFB301S-E — Plane Mount
Flat-surface plane mount bracket. Use for soffit, overhang or eave installs where the camera needs to hang from a horizontal surface.
PFB300C / PFB301C — Ceiling Mount
Two ceiling-mount options for indoor or covered-area installs — entry lobbies, depot canopies, undercover loading bays.
PFA151 — Corner Mount · DC12V/3A — Power Adapter
PFA151 mounts the camera to an external building corner. The DC12V/3A adapter is the genuine Dahua local-power option when running on 12 VDC instead of PoE+.
Frequently Asked Questions
Is the Dahua SDT4E425-8P-GB-APV1 NDAA compliant?
No. Dahua is not certified under NDAA Section 889. If your project has an NDAA mandate (US federal, certain Australian government contracts, or critical-infrastructure tenders that follow the same standard), choose a NDAA-compliant brand from our range instead.
How many NVR channels does this camera use?
Two. The overview channel and the detail channel each present as a separate IP video stream, so they consume two channels on the NVR. Use a 16-channel NVR if you want this camera plus 12–14 other fixed cameras on the same recorder.
Is this a TiOC camera?
Yes — the APV1 suffix is the TiOC active-deterrence indicator on X-Spans cameras (equivalent to "PV" on bullet and turret SKUs). The PTZ head includes red/blue strobe, 11 sound alarms with custom-sound upload, and a built-in speaker.
Does it support AcuPick?
Yes — AcuPick is supported on the overview channel. For full attribute search across recorded footage, pair with a Dahua 5-Series AcuPick NVR (NVR5208-8P-AI/ANZ, NVR5216-16P-AI/ANZ or NVR5432-AI/ANZ).
What power does it need?
PoE+ (IEEE 802.3at), not standard 802.3af, or 12 VDC at 3 A. Maximum draw is 25 W with illuminator, heater, active deterrence, ICR and PTZ all active. A standard 802.3af PoE switch will not run this camera.
How far can the PTZ see at night?
The PTZ channel has 100 m IR and 50 m warm-light reach, plus Starlight low-light at 0.0005 lux B/W. DORI identify distance at the 125 mm tele setting is 250 m — enough to recognise people and read clothing across a large carpark or yard.
What's the warranty in Australia?
5 years, supplied through CCTV Guru as an authorised Australian Dahua reseller. X-Spans sits in Dahua's premium tier on Xinghan AI. We handle warranty claims locally — no overseas shipping required.
Can the camera follow a target automatically?
Yes — Smart Tracking runs in three modes. WizTracking does AI-driven human/vehicle following. Relay tracking (X-Spans exclusive) keeps tracking after a target leaves the overview's 180° field. Linkage tracking restricts following to targets currently visible in the overview.
Does it have a built-in speaker?
Yes — built-in speaker for active-deterrence audio playback. Note: the speaker and the line-out audio output are mutually exclusive — use one or the other, not both simultaneously. NDIS, retail and public-space sites should check local audio-recording legislation before enabling sound recording on the audio input.
What temperature range is it rated for?
–40 °C to +65 °C. Built-in heating glass keeps the optics clear at low temperatures. Suitable for Alpine, desert, coastal and mining-site Australian deployments.
Does it work with third-party NVRs?
Yes — ONVIF Profile S, G and T are supported, so the camera will record to any ONVIF-compatible third-party NVR. AcuPick attribute search and Xinghan AI events only push end-to-end on a genuine Dahua AI NVR.
Do you ship Australia-wide?
Yes. Stock orders placed before 3 pm AEST ship the same business day from our Australian warehouse, with tracked delivery to all metro and regional addresses Australia-wide.
Downloads
Order Your Dahua SDT4E425-8P-GB-APV1 from CCTV Guru
"Add to cart" to order online, or contact our Australian team for project pricing, multi-PTZ configuration advice, NVR sizing and PoE+ switch compatibility checks. We are authorised Australian Dahua resellers, hold stock locally, and back every X-Spans camera with a 5-year Australian warranty and Australian-based tech support. Phone, email or live chat us through cctvguru.com.au/pages/contact — most enquiries are answered the same business day.
