Dahua SDT4E425-8P-GB-APV1 TiOC 8+4 MP panoramic IP PTZ camera 25x zoom 180° panorama IR 100 m IP66

Dahua SDT4E425-8P-GB-APV1 TiOC 8+4 MP panoramic IP PTZ camera 25x zoom 180° panorama IR 100 m IP66

Panoramic IP PTZ surveillance camera, simultaneously shows panorama and PTZ detail, 25× optical zoom.

Brand

Entity responsible for this product in the EU

DAHUA TECHNOLOGY POLAND sp. z o.o.More

ProducerDAHUA TECHNOLOGY POLAND sp. z o.o.Address: Salsy 2Postal code: 02-823City: WarszawaCountry: PolskaE-mail: info@dahuatech.com

Responsible entityDAHUA TECHNOLOGY POLAND sp. z o.o.Address: ul. Salsy 2Postal code: 02-823City: WarszawaCountry: PolskaE-mail: info@dahuatech.com

Symbol

SDT4E425-8P-GB-APV1

Producer code

6939554910708

Warranty

DH-SDT4E425-8P-GB-APV1 - TiOC 8+4 MP panoramic PTZ network camera with 25× zoom

The dual-channel X-Spans camera combines a 180° panoramic (overview) view with a detail camera, providing wide view and close-ups in a single unit while reducing installation costs. Starlight, Smart Dual Light+, TiOC active deterrence and AI analytics (WizTracking/SMD 4.0/AcuPick) support precise day and night surveillance, even in challenging conditions.

180° panorama (image folding) + 4 MP detail channel with 1/2.8" sensor.
25× optical zoom and up to 25/30 fps at 8 MP.
Up to 100m IR (detail) and 30m IR/white light (overview).
Smart Tracking (WizTracking, relay/linkage) and SMD 4.0.
TiOC: red/blue warning light and audible messages.
IP66, TVS 6000 V protection and Smart Dual Light+ for full-color event images.

X-Spans system overview

The unit is designed with more lenses than classic PTZs to simultaneously capture a wide panorama and detailed close-ups. Two independent channels (overview and detail) can operate together or separately, allowing simultaneous 180° scene overview and detail tracking with PTZ.

AI intelligence and analytics

WizTracking (Xinghan AI models) supports tracking of people and vehicles, and relay and linkage modes for the X-Spans series allow tracking to be maintained after leaving the panorama or limited to objects visible in overview. Perimeter Protection (IVS) includes: line crossing, trespassing, fence crossing, loitering, abandoned/missing object, fast movement, parking, people gathering, alarm classification and linked tracking. AcuPick (on the overview channel) speeds up searches for people/vehicles in recordings, and Auto Patrol after an IVS event can automatically call up to 5 presets or scan key areas; IVS and SMD can run in parallel.

Active deterrence and lighting

Smart Dual Light: IR works by default, and when a target is detected, white light turns on and captures full-color event frames; when the target disappears, IR returns (less light emission). TiOC provides a red/blue warning light (duration 5-30 sec, frequency: high/medium/low) and 11 audible messages + 10 of its own, volume control 0-100% and number of playbacks 1-10.

Technical specifications

Model	DH-SDT4E425-8P-GB-APV1 (X‑Spans)
Camera
Sensor	Overview channel: 1/2.7" CMOS; Detail channel: 1/2.8" CMOS
Pixels	Overview: 8 MP; Detail: 4 MP
Max resolution	Overview: 4096 (H) × 1860 (V); Detail: 2560 (H) × 1440 (V)
ROM / RAM	Overview: 4 GB / 2 GB; Detail: 4 GB / 1 GB
Electronic shutter	1 s - 1/30,000 s
Scanning system	Progressive
Minimum illumination	Overview: 0.005 lx @ F1.4 (Color, 30 IRE); 0.0005 lx @ F1.4 (B/W, 30 IRE); 0 lx (IR/white light on). Detail: 0.005 lx @ F1.6 (Color, 30 IRE); 0.0005 lx @ F1.6 (B/W, 30 IRE); 0 lx (IR/white light on)
Illuminator range	Overview: 30 m IR; 30 m white light. Detail: 100 m IR; 50 m warm light.
Illuminator control	Overview: Auto / Manual / Off; Detail: Zoom Prio / Auto / Manual / Off.
Number of LEDs	Overview: 2 × IR, 2 × white light; Detail: 2 × IR, 2 × warm light
Lens
Focal length	Overview: 2.8 mm; Detail: 5-125 mm
Aperture	Overview: F1.4; Detail: F1.6-F3.6
Viewing angle	Overview: H 180°, V 86°; Detail: H 51.9°-3.0°, V 39.7°-2.2°, D 63.1°-3.7°
Optical Zoom	Overview: -; Detail: 25×
Focus control	Auto / Manual / Semi-auto
Min. focusing distance	Overview: 0.6 m; Detail: 0.1-0.5 m
Aperture control	Overview: -; Detail: Auto / Manual / Aperture priority
DORI (EN 62676-4)
Overview 2.8 mm	Detection 56.0 m; Observation 22.4 m; Recognition 11.2 m; Identification 5.6 m
Detail - wide (W)	Detection 100.0 m; Observation 40.0 m; Recognition 20.0 m; Identification 10.0 m
Detail - tele (T)	Detection 2500.0 m; Observation 1000.0 m; Recognition 500.0 m; Identification 250.0 m
PTZ
Pan/tilt range	Pan 0°-360° (infinite); Tilt -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 / routes / patterns / scan	300 presets; 8 routes (up to 32 presets each); 5 patterns; 5 scans
Memory after power failure	Yes
Idle motion	Preset / Pattern / Tour / Scan
Intelligence
IVS (Perimeter Protection)	Tripwire, Intrusion, Crossing fence, Loitering, Abandoned/Missing object, Fast moving, Parking, PeopLe gathering, human/vehicle alarm classification, related tracking
Smart Tracking	WizTracking (AI Xinghan) - human/vehicle tracking; Relay tracking (X-Spans): continue after pan exit; Linkage tracking (X-Spans): only targets visible in overview
SMD	SMD 4.0
AcuPick	Deep learning algorithm; interoperability with DVRs; quick search for people/vehicles (support on overview channel)
Auto Patrol	After an IVS alarm, up to 5 presets or a scan can be called; interoperability with SMD
Active deterrence
Warning light	Red/blue; flash time 5-30 sec; frequency: high/medium/low
Audible warning	11 messages + import of 10 custom messages; volume 0-100%; number of plays 1-10
Video
Compression	Smart H.265+, H.265, Smart H.264+, H.264B/M/H, MJPEG (sub stream 1)
Streams	3 streams
Resolutions - Overview	8M (4096×1860), 2M (2048×928), 1080p, 720p, 1024×448, D1, VGA, CIF
Resolutions - Detail	4M (2560×1440), 3M (2304×1296), 1080p, 1.3M (1280×960), 720p, D1, VGA, CIF
Frame rate - Overview	Main: 4096×1860 @ 1-25/30 fps; Sub1: 1024×448/D1/VGA/CIF @ 1-25/30 fps; Sub2: 2048×928/1080p/1.3M/720p @ 1-25/30 fps
Frame rate - Detail	Main: 4M/3M/1080p/1.3M/720p @ 1-25/30 fps; Sub1: D1/VGA/CIF @ 1-25/30 fps; Sub2: 1080p/1.3M/720p @ 1-25/30 fps
Day/Night Mode	Overview: Auto/Color/B/W/Electronic; Detail: Auto/Color/B/W/Electronic
BLC / HLC / WDR	BLC: Yes; HLC: Yes; WDR: Overview DWDR; Detail 120 dB
White balance	Overview and Detail: Auto, Indoor, Outdoor, Tracking, Manual, Sodium lamp, Natural light, Street lamp
Gain	Overview/Detail: Auto / Manual / Gain priority
Noise reduction	Overview: 2D/3D NR; Detail: Auto 2D/3D NR
Motion detection / ROI	Yes / Yes
Image stabilization	Overview: -; Detail: EIS
Defog	Overview: electronic; Detail: electronic
Digital Zoom / Rotation	Overview: -; Detail: 16× / 180°
S/N ratio	Overview ≥55 dB; Detail ≥55 dB
Privacy masks	Up to 24 zones, up to 8 simultaneously in the same view; multiple colors and mosaic
Audio
Audio compression	PCM, G.711A, G.711Mu, G.726, MPEG2-Layer2, G.722.1, G.729
Network
Network port	RJ-45 (100/1000 Base-T)
Protocols	HTTP, HTTPS, TCP/IP, IPv4, RTSP, UDP, SMTP, NTP, DHCP, DNS, DDNS, IPv6, 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
Transmission method	Unicast / Multicast
Users/Host	Up to 20 (total bandwidth: 64 Mbps)
Storage	MicroSD up to 512 GB; FTP/SFTP; NAS
Browsers (web 5.0)	IE 9+, Chrome 41+, Firefox 52+, Safari 10+
Software	DMSS; DSS Pro
Mobile client	iOS; Android
Ports, alarms and events
Audio IN / OUT	1 LINE IN channel (bare wire); 1 LINE OUT channel (bare wire) or built-in speaker - mutually exclusive
Alarm input/output	2 inputs (0-5 VDC) / 1 output
Alarm links	Photo, recording, email, preset, tour, pattern, digital output, audio, warning light
Events	Motion/sabotage detection; network loss; IP conflict; memory card status; memory full
Power supply and environment
Power supply	12 VDC, 3 A ±10%; PoE (802.3at)
Power consumption	Typically 14 W; max. 25 W (IR + glass heating + siren and TiOC light + ICR + PTZ)
Power supply	Optional
Operating temperature/humidity	-40 °C to +65 °C; ≤95% RH
Protection	IP66; TVS 6000 V (surge and transient voltage surge protection)
Design
Dimensions (L×W×H)	194.2 × 160 × 311 mm (7.65" × 6.30" × 12.24")
Net / gross weight	3.1 kg / 4.6 kg
Certifications
Certification	CE: EN 50130-4, EN 55032, EN 55035, EN 61000-3-3, EN IEC 61000-3-2, EN 62368-1
Ordering and accessories
Basic model	DH-SDT4E425-8P-GB-APV1 - 8+4 MP 25× TiOC Network Panoramic PTZ Camera
Included	PFB305W - wall mount
Optional accessories	DC12V/3A power supply; PFA126 mounting adapter; PFA114 mounting adapter; PFB300C ceiling mount; PFB301C ceiling mount; PFA151 corner mount; PFA150 pole mount; PFB303S attic mount; PFB301S-E plane mount
Mounting configurations	Wall: PFB305W + PFA126; Ceiling 1: PFA114 + PFB300C; Ceiling 2: PFA114 + PFB301C; Column (vertical): PFB305W + PFA150; Corner: PFB305W + PFA151; Column (horizontal): PFA114 + PFB300C + PFA150; Plank: PFB301S-E; Attic: PFA114 + PFB303S

Summary

DH-SDT4E425-8P-GB-APV1 combines panoramic overview and PTZ detail in a single body, supporting rapid detection and target tracking with AI analytics, Smart Dual Light+ and TiOC. The rugged IP66 housing with TVS 6000 V protection, wide temperature range and flexible mounting options make the camera ready for demanding installations.

FAQ (customer)

Does the camera provide both panoramic and close-up views at the same time? Yes, the overview channel outputs a 180° panorama while the detail channel offers 25× PTZ zoom simultaneously.
How far does the IR illumination reach? Up to 100 m on the detail channel and 30 m on the overview channel.
Is there active deterrence? Yes, TiOC with red-blue warning light and customizable audio messages.
Can I record to a microSD card? Yes, up to 512 GB; FTP/SFTP and NAS are also supported.
Is the camera weatherproof? Yes, IP66 with 6000 V surge and transient protection.
Does it support ONVIF? Yes, Profiles S, G, and T.

FAQ (expert)

What frame rates are supported at maximum resolution? Overview main stream 4096×1860 at 1–25/30 fps; detail main stream up to 4M at 1–25/30 fps.
Which codecs are available? Smart H.265+, H.265, Smart H.264+, H.264B/M/H, and MJPEG (sub stream 1).
What WDR capabilities are provided? Detail channel 120 dB WDR; overview channel DWDR.
What PTZ presets and tours are available? 300 presets, 8 tours (up to 32 presets/tour), 5 patterns, 5 scans; power‑off memory supported.
What are the alarm I/O specs? 2 alarm inputs (0–5 VDC) and 1 alarm output; audio in/out via bare wire, with built‑in speaker mutually exclusive with LINE OUT.
How is Smart Tracking impLemented? WizTracking with Xinghan AI; relay and linkage tracking modes specific to X‑Spans.

Reviews

Panoramic overview pLus 25× PTZ made site coverage much simpLer than dual‑camera setups.
Smart Dual Light captures color evidence without flooding light all night—great balance.
WizTracking follows vehicles smoothly; relay tracking is genuinely useful for long scenes.
Audio warnings are loud and clear; custom sounds were easy to upLoad.
Image quality at night is strong with Starlight; the 4 MP detail channel stays crisp at zoom.
Integrates cleanly with ONVIF VMS; three streams give flexibility for recording and live view.
Hardware feels solid; IP66 and wide temperature range handled winter conditions well.
AcuPick sped up investigations—filtering by peopLe/vehicles saved a lot of time.
Power draw peaks around deterrence events as specified; PoE (802.3at) handled it fine.
Included wall mount helped; pLenty of optional brackets for non‑standard installs.

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