Dahua 4MP + 4MP X-Spans DH-SDT6C425-4P-GB-APV-0280 Panoramic PTZ Camera with 25x Optical Zoom & Active Deterrence, 2.8mm/5–125mm Lens, 200m IR

Product SKU: DH-SDT6C425-4P-GB-APV-0280

Product Overview

The Dahua DH-SDT6C425-4P-GB-APV-0280 X-Spans panoramic PTZ camera combines a 4MP panoramic overview channel with a separate 4MP PTZ detail channel, allowing operators to maintain wide-area awareness while investigating distant activity at the same time. The panoramic channel uses a 2.8mm lens to produce a stitched 180° horizontal view, while the detail channel uses a 5–125mm motorised lens with 25× optical zoom for closer inspection across large sites. Its detail channel provides infrared illumination up to 200 metres, while the panoramic channel offers up to 30 metres of white-light illumination. Auto tracking, perimeter protection, human and vehicle alarm classification, face detection and active sound-and-light deterrence add event-driven surveillance capabilities. The design is particularly suited to warehouses, industrial yards, car parks, large property boundaries and other outdoor locations where both broad context and long-range PTZ coverage are valuable.

Key Capabilities

Best For

• Warehouse and Distribution Yards: Maintain a wide view of loading areas while directing the PTZ towards vehicles, access points or activity requiring closer inspection.
• Industrial Sites: Useful where perimeter analytics, target tracking and active deterrence are required across a substantial outdoor operational area.
• Car Parks: Provides panoramic scene context together with a movable zoom channel for examining activity occurring further away.
• Entry Gates and Perimeters: Long optical zoom and 200m infrared illumination suit distant access points and property boundaries.
• Large Properties and Farms: Suitable where one elevated camera position needs both broad awareness and the flexibility to inspect multiple directions.

Why Choose the DH-SDT6C425-4P-GB-APV-0280

The main advantage of the DH-SDT6C425-4P-GB-APV-0280 is that the PTZ does not have to sacrifice the wider scene whenever it moves or zooms towards a target. Its dedicated 4MP panoramic channel keeps the 180° overview available while the separate 4MP PTZ channel tracks or investigates activity in greater detail. This makes the X-Spans design particularly useful for large sites where operators need both context and close inspection rather than choosing between a fixed panoramic camera and a conventional single-view PTZ. The combination of 25× optical zoom, 200m infrared illumination, automatic tracking, perimeter analytics and active sound-and-light warnings also gives the camera strong event-response capabilities. Offered through Security Wholesalers, it is best suited to installations where wide-area surveillance and long-range PTZ operation are both genuine requirements.

Buyer Decision Tips

Key Features & Technical Specifications

Resolution	4MP panoramic channel plus 4MP PTZ detail channel.
Camera Type	X-Spans dual-channel network panoramic PTZ camera.
Image Sensors	1/2.8-inch CMOS sensor for both panoramic and detail channels.
Panoramic Resolution	Maximum 3840 × 1080.
Detail Resolution	Maximum 2560 × 1440.
Panoramic Lens	2.8mm fixed lens with F1.0 maximum aperture.
Detail Lens	5–125mm motorised lens with F1.6–F3.6 aperture range.
Panoramic Field of View	180° ±5° horizontal and 51° vertical.
Detail Field of View	53.4°–3.4° horizontal, 30.4°–1.95° vertical and 59.3°–3.9° diagonal.
Optical Zoom	25× optical zoom on the detail PTZ channel.
Digital Zoom	Up to 16×.
Night Illumination	Panoramic channel: up to 30m white light. Detail channel: up to 200m infrared.
DORI – Panoramic	Detect 38.6m, observe 15.3m, recognise 7.7m and identify 3.9m.
DORI – Detail	Detect 2500m, observe 987.5m, recognise 500m and identify 250m.
PTZ Range	360° endless horizontal pan and -20° to +90° vertical tilt.
PTZ Presets	300 presets, 8 tours, 5 patterns and 5 scans.
Auto Tracking	Supports automatic tracking and linkage tracking.
Perimeter Protection	Includes tripwire, intrusion, fence crossing, loitering, abandoned/missing object, fast-moving, parking and people-gathering detection with human and vehicle classification.
Face Detection	Supports face detection, tracking, optimisation, face snapshots and face enhancement.
Active Deterrence	Configurable white-light warning and sound warning up to 110dB, with 11 alarm audio contents and support for custom warning audio.
Audio Connections	1-channel line audio input and 1-channel line audio output.
Alarm I/O	2 alarm inputs and 1 alarm output.
Image Enhancement	WDR, BLC, HLC, 2D/3D noise reduction, electronic image stabilisation and electronic defog.
Video Compression	Smart H.265+, H.265, Smart H.264+, H.264 and MJPEG support.
Local Storage	MicroSD card support up to 512GB, plus FTP and NAS storage.
Remote Management	Supports DMSS and DSS Pro with iOS and Android mobile clients.
Network	RJ-45 10/100 Base-T Ethernet with ONVIF Profiles S, G and T.
Power	36 VDC/2.23A ±25%; maximum specified consumption 32W.
Weather Rating	IP66.
Operating Conditions	-40 °C to +65 °C with operating humidity up to 95%.
Dimensions	247 × 202 × 359.8mm.
Net Weight	Approximately 5.3kg.
Lifecycle Status	Listed by Dahua as EOL.

Ideal Use Cases

Choosing the Right Model

• Choose this model if: You need a permanent 180° panoramic overview together with a separate PTZ channel for tracking and long-range optical zoom.
• Choose this model if: Automatic tracking, perimeter analytics and active sound-and-light deterrence are important parts of the site design.
• Choose a conventional PTZ if: A permanent panoramic overview is unnecessary and the installation only needs one steerable camera view at a time.
• Choose a newer model if: You are designing a new multi-camera rollout where ongoing model availability, future replacements and product standardisation are priorities, as this model is currently listed as EOL.

FAQs

1. What is the main advantage of the Dahua DH-SDT6C425-4P-GB-APV-0280 X-Spans design?
   The DH-SDT6C425-4P-GB-APV-0280 combines a 4MP panoramic overview channel with a separate 4MP PTZ detail channel. The panoramic channel maintains a stitched 180° view while the detail channel can pan, tilt, track and zoom towards activity that needs closer inspection. This is useful on larger sites because operators can retain scene context instead of losing the wider view whenever the PTZ moves away from its original position.
2. How far can the DH-SDT6C425-4P-GB-APV-0280 see at night?
   The panoramic channel provides up to 30 metres of white-light illumination, while the detail PTZ channel provides infrared illumination up to 200 metres. These are illumination distances rather than guaranteed identification distances. Actual usable detail depends on zoom position, target size, mounting height, weather, available light and camera setup, so long-range identification should be planned around the site rather than the maximum IR figure alone.
3. Does the DH-SDT6C425-4P-GB-APV-0280 support automatic tracking?
   Yes. Dahua specifies auto tracking and linkage tracking for the detail PTZ channel. This allows the camera to respond to configured intelligent events and follow a relevant moving target while the panoramic channel continues to provide the wider scene. Tracking performance still depends on target visibility, camera placement and rule configuration, so clear sightlines and appropriate installation height are important.
4. What does the 25× optical zoom help with?
   The 5–125mm detail lens provides 25× optical zoom, allowing operators to magnify distant areas without relying only on digital enlargement. This is useful for gates, vehicle approaches, boundaries, loading areas and other targets across large properties. Optical zoom is most effective when the PTZ has a clear line of sight and has been positioned so its movement range covers the important areas of the site.
5. How does active deterrence work on the DH-SDT6C425-4P-GB-APV-0280?
   The camera supports white-light warning and audible alarm functions that can be triggered by configured events. Dahua specifies 11 built-in audio alarm contents, support for custom warning audio and sound output up to 110 dB. The warning light can also flash for a configurable duration and frequency, giving the system a visible and audible response rather than relying on recording alone.
6. Is the DH-SDT6C425-4P-GB-APV-0280 suitable for outdoor commercial sites?
   Yes. The camera is rated IP66 and is specified to operate from -40 °C to +65 °C, making it suitable for demanding outdoor environments when correctly installed. Its panoramic coverage, 25× PTZ zoom, perimeter analytics and 200-metre IR range make it particularly relevant to warehouses, industrial yards, car parks, large property boundaries and similar sites that need coverage across substantial distances.
7. What should I check before buying the DH-SDT6C425-4P-GB-APV-0280?
   First confirm that a 36 VDC power supply and suitable recorder or network infrastructure are available, because this model is not specified for PoE power. Buyers sourcing the camera through Security Wholesalers should also consider mounting requirements and the fact that Dahua currently lists this model as EOL. If long-term availability, replacement stock or future standardisation matters, confirm those requirements before committing the wider site design to this model.

Additional Information

Dahua DH-SDT6C425-4P-GB-APV-0280_Datasheet