Product Overview
The Dahua DH-SD4D425MB-HNR is a 4MP WizSense network PTZ camera designed for wide-area outdoor surveillance where long-range detail, intelligent tracking and improved night-time identification are required. Its 5 mm to 125 mm motorised lens provides 25x optical zoom, allowing operators to monitor expansive car parks, industrial yards, transport facilities, warehouses and perimeter fence lines from a single mounting point. Dahua Smart Dual Light technology combines infrared and warm white illumination, with both light types reaching up to 100 metres. The camera normally operates discreetly using infrared at night, then activates its warm white light when a target is detected to record important events in full colour. WizTracking, SMD 4.0, AcuPick, face detection and IVS perimeter protection provide intelligent human and vehicle detection, target tracking and faster event searching. An IP67 housing, TVS 6000 V lightning protection and an operating range of -40°C to +70°C make the DH-SD4D425MB-HNR suitable for demanding Australian outdoor installations.
Key Capabilities
25x Optical Zoom for Long-Range Detail
The 5 mm to 125 mm motorised zoom lens provides a wide 54.1-degree horizontal view at its shortest focal length and a narrow 3.4-degree view when fully zoomed. At the telephoto setting, the camera has a calculated DORI detection distance of up to 2,500 metres and an identification distance of up to 250 metres.
Smart Dual Light with 100 m Coverage
The camera combines infrared illumination and warm white lighting, with each providing coverage up to 100 metres. At night, the camera can use infrared for discreet monitoring and automatically activate its warm light when a relevant target enters the detection area, helping capture full-colour details during important events.
WizTracking Target Tracking
Dahua WizTracking controls the camera’s pan, tilt and zoom functions to follow a detected target and keep it within view. Tracking can be activated manually or linked to intelligent rules, allowing the camera to zoom in and record a more detailed movement path when a person or vehicle triggers an event.
IVS Perimeter Protection
On-camera IVS analytics include tripwire, intrusion, crossing fence, loitering, abandoned or missing object, fast-moving target, parking and people-gathering detection. Human alarm classification and linkage tracking help operators focus on relevant activity while reducing unnecessary event notifications.
SMD 4.0 and AcuPick
SMD 4.0 uses intelligent target classification to distinguish people and vehicles from irrelevant movement such as animals, vegetation and environmental activity. AcuPick works with compatible Dahua back-end devices to rapidly search live and recorded video for matching human and motor vehicle targets.
IP67 Outdoor Protection
The DH-SD4D425MB-HNR carries an IP67 environmental rating and includes TVS 6000 V lightning protection, surge protection and voltage transient protection. It is designed to operate between -40°C and +70°C, making it suitable for exposed pole, rooftop and parapet installations.
Best For
- Industrial Yards and Warehouses: Monitor loading areas, external storage zones, vehicle entrances and perimeter fence lines using one camera with active pan, tilt, zoom and automated tracking.
- Large Car Parks: Use human and vehicle classification, parking detection, loitering detection and long-range optical zoom to monitor extensive parking areas.
- Transport and Logistics Facilities: Configure presets and patrol tours to monitor loading bays, access roads, pedestrian areas and vehicle movement routes.
- Gatehouses and Controlled Entrances: Capture close-up views of approaching vehicles and people using 25x optical zoom, WizTracking and face detection.
- Remote Outdoor Perimeters: Use Smart Dual Light to provide discreet infrared monitoring and activate warm light when relevant targets enter the protected area.
Why Choose the DH-SD4D425MB-HNR
The DH-SD4D425MB-HNR combines broad site coverage with the ability to zoom in on distant activity without physically repositioning the camera. It supports 360-degree endless pan movement, tilt from -15 degrees to +90 degrees, 300 programmable presets, 8 tours, 5 patterns and 5 scans. Preset movement reaches up to 240 degrees per second horizontally and 200 degrees per second vertically, allowing the camera to rapidly move between defined areas.
Unlike a conventional infrared PTZ camera, Smart Dual Light gives the installer the option to combine discreet infrared monitoring with event-triggered warm lighting. When a human or vehicle is detected, the camera can activate its warm light and capture full-colour footage containing more useful clothing, vehicle and incident details. Once the target leaves, the camera can return to infrared monitoring to reduce unnecessary light pollution.
WizTracking can follow detected subjects, while Auto Patrol allows the camera to respond to IVS events and then continue monitoring based on its configured preset route. SMD 4.0 reduces irrelevant motion alarms, and AcuPick provides faster human and vehicle searches when connected to compatible Dahua recorders or management systems. Smart H.265+ compression, electronic image stabilisation, 120 dB WDR and electronic defog further improve storage efficiency and image usability across challenging installations.
Buyer Decision Tips
Buyer Tip 1 – Use a PoE+ Power Source: The DH-SD4D425MB-HNR requires IEEE 802.3at PoE+. Its maximum PoE consumption is 23 W when the illuminators and PTZ mechanism are operating. Confirm that the NVR, switch or injector can provide sufficient 802.3at power to the camera. It can alternatively be powered using a suitable 12 VDC, 3 A power supply.
Buyer Tip 2 – AcuPick Requires Compatible Back-End Equipment: AcuPick works with compatible Dahua recorders or management devices to search for matching people and motor vehicles. Confirm that the selected NVR supports AcuPick if this search function is important to the project.
Buyer Tip 3 – Audio Devices Are External: The camera provides one line-level audio input and one line-level audio output using bare-wire connections. It does not contain a built-in microphone or speaker, so external audio equipment is required for sound recording or announcements.
Buyer Tip 4 – PTZ Cameras Do Not Record Every Direction at Once: A PTZ camera can cover multiple areas through presets, tours and operator control, but it only records the direction it is facing at that moment. Critical entrances or continuously monitored areas may still require dedicated fixed cameras.
Key Features & Technical Specifications
| Model |
DH-SD4D425MB-HNR |
| Camera Type |
4MP Smart Dual Light WizSense Network PTZ Camera |
| Image Sensor |
1/2.8-inch CMOS |
| Maximum Resolution |
4MP, 2560 x 1440 |
| Frame Rate |
Up to 25/30 fps at 4MP |
| Optical Zoom |
25x |
| Digital Zoom |
16x |
| Focal Length |
5 mm to 125 mm |
| Maximum Aperture |
F1.6 to F3.6 |
| Horizontal Field of View |
54.1° to 3.4° |
| Minimum Illumination |
Colour: 0.005 lux at F1.6, B/W: 0.0005 lux at F1.6, 0 lux with illuminator on |
| Infrared Distance |
Up to 100 m |
| Warm Light Distance |
Up to 100 m |
| DORI at Telephoto |
Detect: 2,500 m, Observe: 1,000 m, Recognise: 500 m, Identify: 250 m |
| Pan Range |
0° to 360° endless |
| Tilt Range |
-15° to +90°, with 180° auto flip |
| Manual PTZ Speed |
Pan: 0.1° to 200°/s, Tilt: 0.1° to 120°/s |
| Preset PTZ Speed |
Pan: up to 240°/s, Tilt: up to 200°/s |
| Presets |
300 |
| Tours / Patterns / Scans |
8 tours, 5 patterns and 5 scans |
| Power-Off Memory |
Yes |
| Smart Tracking |
WizTracking |
| Smart Motion Detection |
SMD 4.0 |
| Intelligent Search |
AcuPick with compatible back-end devices |
| Auto Patrol |
Yes, with IVS event linkage and preset-route monitoring |
| IVS Perimeter Protection |
Tripwire, intrusion, crossing fence, loitering, abandoned or missing object, fast moving, parking, people gathering, human classification and linkage tracking |
| Face Detection |
Face detection, optimisation, snapshot capture, image enhancement, 6 attributes and 8 expressions |
| Wide Dynamic Range |
120 dB WDR |
| Image Stabilisation |
Electronic Image Stabilisation |
| Video Compression |
Smart H.265+, H.265, Smart H.264+, H.264B, H.264M, H.264H and MJPEG |
| Video Streams |
3 streams |
| Privacy Masking |
Up to 24 areas, with up to 8 areas in the same view |
| Local Storage |
MicroSD card up to 512 GB |
| Network Storage |
FTP, SFTP and NAS |
| Network Interface |
1 x RJ45 10/100 Base-T |
| Interoperability |
ONVIF Profile S, G and T, CGI and SDK |
| Audio Input / Output |
1 line input / 1 line output, bare wire |
| Alarm Input / Output |
2 inputs / 1 output |
| Power Supply |
12 VDC, 3 A or PoE+ IEEE 802.3at |
| Power Consumption |
DC: 8 W basic, 20 W maximum. PoE: 11 W basic, 23 W maximum |
| Environmental Protection |
IP67, TVS 6000 V lightning protection, surge protection and voltage transient protection |
| Operating Temperature |
-40°C to +70°C |
| Operating Humidity |
Up to 95% |
| Dimensions |
270.4 mm x 160 mm diameter |
| Net Weight |
2.4 kg |
Ideal Use Cases
Industrial Yard and Warehouse Perimeters
Use the camera’s 25x optical zoom and endless pan movement to monitor loading docks, storage yards, external plant areas and boundary fence lines. IVS rules can activate WizTracking when a person enters a protected area.
Car Parks and Vehicle Entrances
SMD 4.0, parking detection, loitering detection and AcuPick support efficient vehicle event monitoring and faster post-incident searching across large parking areas.
Transport and Logistics Facilities
Configure automated tours to cover loading bays, vehicle lanes and pedestrian areas. Rapid preset movement allows the camera to respond quickly when an intelligent rule is triggered.
Gatehouse and Controlled Entry Monitoring
Face detection, 25x optical zoom and WizTracking can capture closer views of people and vehicles approaching controlled entry points or security gates.
Low-Light Outdoor Sites
Smart Dual Light provides infrared monitoring when no target is present and can activate warm white illumination for full-colour event recording when a person or vehicle is detected.
Choosing the Right Model
- Choose this model if: You need active pan, tilt and zoom coverage across a large outdoor site, together with 25x optical zoom, intelligent tracking and up to 100 m infrared and warm-light illumination.
- Choose this model if: Your project requires SMD 4.0, IVS perimeter protection, face detection and AcuPick searching with a compatible Dahua recorder.
- Choose a fixed camera instead if: The area must be recorded continuously from one angle. A PTZ camera only records the direction it is facing, while a fixed camera continuously maintains the same view.
- Choose a different PTZ if: Your application requires more than 25x optical zoom, a confirmed IK vandal-resistance rating or specialised functions such as thermal imaging or licence plate recognition.
- Check the power source: Ensure the selected network switch, injector or recorder supports IEEE 802.3at PoE+ and can allocate at least 23 W to the camera.
FAQs
- Does the DH-SD4D425MB-HNR provide colour video at night?
Yes. The camera includes warm white illumination with a range of up to 100 metres. With Smart Dual Light enabled, it can normally monitor using infrared and activate its warm light when a relevant target is detected, allowing important events to be recorded in colour.
- What is the difference between optical and digital zoom?
The camera’s 25x optical zoom changes the lens focal length to magnify a distant subject while retaining substantially more image detail. The 16x digital zoom enlarges part of the recorded image electronically and does not add additional captured detail.
- Can the camera automatically track people and vehicles?
Yes. WizTracking can control the pan, tilt and zoom functions to follow a detected target. Tracking can be triggered manually or linked to configured intelligent rules.
- What is Auto Patrol?
Auto Patrol allows an IVS event to trigger PTZ movement toward the detected target. After responding to the event, the camera can continue monitoring using its configured preset patrol route.
- Does AcuPick work without a recorder?
AcuPick is designed to work with compatible Dahua back-end devices. A compatible Dahua NVR or management platform is therefore required to use the full target-matching and recorded-video search capability.
- What PoE standard is required?
The DH-SD4D425MB-HNR requires IEEE 802.3at PoE+. Maximum PoE consumption is 23 W when the illumination and PTZ functions are operating. Standard IEEE 802.3af PoE may not provide enough power.
- How many presets and patrol functions are supported?
The camera supports 300 programmable presets, 8 tours, 5 patterns and 5 scans. It also supports power-off memory and idle actions using presets, patterns, tours or scans.
- Does the camera include a built-in microphone?
No. It provides one line-level audio input and one line-level audio output through bare-wire connections. An external microphone and speaker are required where audio recording or announcements are needed.
- Can the camera record to a memory card?
Yes. The DH-SD4D425MB-HNR supports a MicroSD card with capacity up to 512 GB. It also supports FTP, SFTP and NAS storage.
- Is it suitable for exposed outdoor installation?
Yes. The camera is IP67 rated and includes TVS 6000 V lightning protection, surge protection and voltage transient protection. Its specified operating temperature is -40°C to +70°C.
Additional Information
