Product SKU: DH-SD49425GB-HNR
Product Overview
Wide-area monitoring across large outdoor sites from a single fixed mounting point is where the DH-SD49425GB-HNR earns its place. This 4MP speed dome camera uses a 25x optical zoom lens spanning 5 mm to 125 mm to cover expansive car parks, transport hubs, shopping centre forecourts, and industrial perimeters without repositioning the camera. Equipped with Dahua Starlight technology and a 1/2.8″ CMOS sensor, it maintains colour imaging at 0.005 lux and switches to near-zero-light monochrome at 0.0005 lux, with 4 IR illuminators reaching up to 100 m when ambient light is absent. It integrates IVS perimeter protection with 9 rule types including tripwire, intrusion, loitering detection, and people gathering, alongside face detection with attribute and expression extraction, SMD 4.0, and Quick Pick. IP66-rated with TVS 6000 V lightning protection and an operating range of -40 degrees C to +70 degrees C, the DH-SD49425GB-HNR is built for exposed rooftop, pole-mount, and parapet installations across demanding Australian conditions.
Key Capabilities
25x Optical Zoom with Wide DORI Coverage
The 5 mm to 125 mm motorised lens delivers 25x optical zoom, enabling detection at over 2,100 m and facial identification at 216 m. This makes it practical for monitoring large open areas from a single pole or rooftop mount without sacrificing subject detail at range.
Starlight Low-Light Performance
The 1/2.8″ CMOS sensor with Starlight technology produces colour images at 0.005 lux and monochrome at 0.0005 lux. With 4 IR illuminators extending to 100 m and Smart IR control, the camera maintains usable footage across dimly lit car parks, access roads, and perimeter fence lines after dark.
IVS Perimeter Protection with 9 Rule Types
On-camera IVS analytics support tripwire, intrusion, crossing fence, loitering, abandoned/missing object, fast moving, parking detection, people gathering, and vehicle/human classification. These rules allow zone-specific alerting across sprawling outdoor sites without relying entirely on back-end VMS processing.
Face Detection with Attribute Extraction
The DH-SD49425GB-HNR supports face detection with real-time optimisation, tracking, and snapshot upload. It extracts 6 attributes and 8 expressions including gender, age, glasses, mask, and emotional state, making it well suited to access monitoring at controlled entry points and transport hubs.
SMD 4.0 and Quick Pick
SMD 4.0 filters motion events by human and vehicle classification to reduce nuisance alerts from trees, animals, and lighting changes. Quick Pick accelerates post-event search by allowing operators to locate specific human or vehicle events without scrubbing through continuous recording.
IP66 and TVS 6000 V Lightning Protection
With an IP66 ingress rating and TVS 6000 V transient voltage suppression alongside surge and voltage transient protection, the DH-SD49425GB-HNR is rated for exposed outdoor installation in Australian coastal, industrial, and high-lightning-risk environments operating between -40 degrees C and +70 degrees C.
Best For
- Large Outdoor Perimeters: The 25x optical zoom and 360-degree endless pan allow a single camera to actively monitor fence lines, driveways, and open yards that would otherwise require multiple fixed cameras.
- Car Parks and Transport Hubs: IVS perimeter rules including loitering, parking detection, and vehicle/human classification provide zone-based alerting suited to unattended or after-hours car park environments.
- Access Control Support at Entry Points: Face detection with attribute extraction and high-zoom close-up capability supports monitoring at gatehouse entries, boom gates, and controlled pedestrian zones.
- Exposed Rooftop and Pole Installations: TVS 6000 V lightning protection, IP66 rating, and a -40 degrees C to +70 degrees C operating range make the DH-SD49425GB-HNR appropriate for pole-top and rooftop mounting in exposed outdoor locations.
Why Choose the DH-SD49425GB-HNR
Where a fixed lens camera can only monitor a defined angle, the DH-SD49425GB-HNR replaces a bank of fixed cameras with a single unit capable of covering the full 360-degree horizontal sweep at speeds up to 240 degrees per second, supported by 300 programmable presets and 8 configurable patrol tours. The 4MP 2560 x 1440 resolution at up to 30fps, combined with a 25x optical zoom and DORI identify distance of 216 m, means subjects can be zoomed in and captured in detail at a range well beyond what fixed perimeter cameras can achieve. The embedded IVS engine handles nine distinct perimeter rule types on the device itself, reducing dependence on server-side processing. Smart H.265+ compression reduces storage demands compared to standard H.265. Electronic image stabilisation (EIS) keeps zoomed-in views steady on windy or vibrating mount points. The DH-SD49425GB-HNR is available at Security Wholesalers and is backed by the Dahua Australia product range with a local datasheet for specification verification.
Buyer Decision Tips
Buyer Tip 1 – PoE Standard Matters: The DH-SD49425GB-HNR requires PoE+ (IEEE 802.3at) with a maximum draw of 20 W under full load (IR on, PTZ moving, alarm active). Standard PoE (802.3af) switches are limited to 15.4 W and will not reliably power this camera. Confirm your switch or injector supports 802.3at before installation, or plan for a dedicated 12 VDC/3A power supply run to the mount point.
Buyer Tip 2 – Audio Requires External Devices: The DH-SD49425GB-HNR has a 1-channel LINE IN and 1-channel LINE OUT via bare wire connection. There is no built-in microphone or built-in speaker in this camera. If audio monitoring or announcements are required at the installation point, an external microphone and amplified speaker must be wired to the audio input and output ports separately.
Key Features & Technical Specifications
| Image Sensor |
1/2.8″ CMOS |
| Resolution |
4MP – 2560 x 1440 |
| Optical Zoom |
25x (5 mm to 125 mm focal length) |
| Max. Aperture |
F1.6 to F3.6 |
| Min. Illumination |
Colour: 0.005 lux @ F1.6 / B/W: 0.0005 lux @ F1.6 / 0 lux with IR on |
| IR Illumination Distance |
Up to 100 m (4 IR illuminators, Smart IR) |
| Pan/Tilt Range |
Pan: 0° to 360° endless / Tilt: -15° to +90°, auto flip 180° |
| PTZ Speed (Preset) |
Pan: 240°/s / Tilt: 200°/s |
| Presets / Tours / Patterns |
300 presets / 8 tours (up to 32 presets per tour) / 5 patterns |
| IVS Perimeter Protection |
Tripwire, intrusion, crossing fence, loitering, abandoned/missing object, fast moving, parking detection, people gathering, vehicle/human classification |
| Face Detection |
Yes – detection, tracking, optimisation, attribute extraction (6 attributes, 8 expressions) |
| SMD / Quick Pick |
SMD 4.0 / Quick Pick – Yes |
| Video Compression |
Smart H.265+, H.265, Smart H.264+, H.264, H.264H, H.264B, MJPEG (sub stream) |
| Frame Rate |
4MP/3M/1080p/720p @ 1 to 25/30 fps |
| Storage |
Micro SD card (up to 512 GB), FTP/SFTP, NAS |
| Power Supply |
12 VDC/3A or PoE+ (IEEE 802.3at) / Basic: 9 W / Max: 20 W |
| Protection |
IP66, TVS 6000 V lightning protection, surge and voltage transient protection |
| Operating Temperature |
-40°C to +70°C |
| Dimensions / Weight |
270.4 mm x 160 mm / 2.4 kg (net) |
Ideal Use Cases
Industrial Yard and Warehouse Perimeters
The 25x optical zoom and 360-degree endless pan allow a single pole-mounted unit to actively sweep and zoom across the full perimeter of a warehouse yard or loading dock, using tripwire and intrusion IVS rules to trigger alerts on after-hours access.
Multi-Level and Open Car Parks
Parking detection and loitering IVS rules, combined with SMD 4.0 vehicle/human classification, allow the camera to monitor large car park areas and flag unauthorised lingering or stationary vehicles without generating excessive false alerts from ambient movement.
Transport Hubs and Station Forecourts
The 300-preset configuration combined with patrol tour automation allows the camera to systematically cover bus bays, taxi ranks, and pedestrian concourses. People gathering detection can flag crowd build-up for operator review.
Gatehouse and Controlled Entry Monitoring
Face detection with tracking and attribute extraction makes the DH-SD49425GB-HNR useful at gatehouse entry lanes where capturing usable face images of approaching subjects supports access management and incident review workflows.
Exposed Rooftop and Coastal Site Installations
TVS 6000 V lightning protection, IP66 ingress rating, and a confirmed operating range of -40 degrees C to +70 degrees C mean the DH-SD49425GB-HNR can be deployed on exposed rooftop masts and coastal poles where fixed cameras with lower protection ratings would be at risk.
Choosing the Right Model
- Choose this model if: You need a single camera to cover a large outdoor area with active pan, tilt, and zoom control, and require on-camera IVS perimeter analytics, face detection with attribute capture, and Starlight low-light performance at ranges up to 100 m IR.
- Choose a different model if: Your site requires a fixed, static view of a defined area and budget is a priority – a fixed-lens bullet or turret camera will provide equivalent resolution coverage of a single zone at significantly lower cost. Equally, if your mounting location does not have a PoE+ switch port or a 12 VDC/3A power source available, factor in the additional infrastructure cost before specifying this unit.
- Choose a different model if: Vandal resistance is a hard requirement – no IK impact rating is confirmed for the DH-SD49425GB-HNR. For locations with high physical interference risk, a confirmed IK10-rated dome camera would be more appropriate.
FAQs
- What is the maximum pan and tilt speed on the DH-SD49425GB-HNR?
At preset recall, pan speed reaches 240 degrees per second and tilt reaches 200 degrees per second. During manual joystick control, pan runs from 0.1 to 200 degrees per second and tilt from 0.1 to 120 degrees per second, allowing both rapid slew to preset positions and fine-tuned manual tracking of slow-moving subjects.
- Does the camera remember its position after a power outage?
Yes. The DH-SD49425GB-HNR includes power-off memory, which means the camera returns to its last position automatically when power is restored. This is important for unmanned installations where manual repositioning after a power event is not practical.
- What PoE standard does the DH-SD49425GB-HNR require?
The camera requires PoE+ to IEEE 802.3at standard. Maximum power draw is 20 W under full load with IR illuminators active, PTZ in motion, and an alarm output triggered. Standard 802.3af PoE (15.4 W budget) is insufficient. Alternatively, a 12 VDC/3A power supply can be used.
- How many presets and patrol tours can be configured?
The DH-SD49425GB-HNR supports 300 programmable presets, 8 configurable patrol tours with up to 32 presets each, and 5 recorded patterns. Combined with 5 scan limits and idle motion actions, this gives operators extensive control over automated surveillance routines across large sites.
- What perimeter protection rules are available on-camera?
IVS perimeter protection includes tripwire, intrusion detection, crossing fence detection, loitering detection, abandoned/missing object detection, fast moving, parking detection, people gathering, and vehicle/human alarm classification. These run on the camera itself, reducing the processing load on the recorder or VMS.
- Is the DH-SD49425GB-HNR suitable for high-lightning-risk outdoor sites?
Yes. The camera is rated to TVS 6000 V for lightning transient protection and also incorporates surge protection and voltage transient protection. Paired with the IP66 ingress rating and a -40 degrees C to +70 degrees C operating range, it is engineered for exposure-prone outdoor mounting on poles, rooftops, and parapet walls. The DH-SD49425GB-HNR is part of the Security Wholesalers Dahua range, with the manufacturer datasheet available for project specification use.
- What local storage capacity does the DH-SD49425GB-HNR support?
The camera supports Micro SD card storage up to 512 GB, in addition to FTP/SFTP and NAS network storage options. Local SD card storage provides a useful buffer for edge recording in the event of network interruption, which is particularly valuable at remote or exposed installation points.
Additional Information
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