Product SKU: DH-SD5A425XA-HNR
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Product Overview
For security teams managing large outdoor areas where a single fixed camera cannot cover the required ground, the DH-SD5A425XA-HNR delivers full pan/tilt/zoom control alongside deep-learning AI in a robust IP67- and IK10-rated housing. Built around a 1/1.8″ 4MP CMOS sensor, it combines a 25x optical zoom lens spanning 5.8 mm to 145 mm with Starlight+ low-light technology capable of capturing colour detail at 0.001 lux, and 4 IR LEDs reaching 150 m in total darkness. Equipped with SMD Plus, AI-driven perimeter protection, auto-tracking, and face detection, this PTZ camera actively responds to defined intrusion rules rather than simply recording them. It also integrates Smart H.265+ compression, 120 dB True WDR, electronic image stabilisation, and support for up to 300 presets and 8 patrol tours. This makes it well suited to car parks, industrial yards, perimeter fence lines, and large commercial sites where one camera must intelligently follow and zoom into a moving subject across a wide field.
Key Capabilities
25x Optical Zoom with PFA Technology
A 5.8 mm to 145 mm varifocal lens delivers a 25x optical zoom range, while PFA (Predictive Focusing Algorithm) technology maintains sharp focus throughout every zoom transition. This is critical for identifying subjects at distance across large sites without sacrificing image clarity during movement.
Starlight+ Low-Light Performance
With a minimum illumination of 0.001 lux at F1.6 in colour mode and 0.0001 lux in black and white, the camera captures usable detail in near-total darkness before the 150 m IR illuminators activate. This combination is particularly valuable for unlit outdoor perimeters and car parks at night.
AI Perimeter Protection with SMD Plus
Deep-learning-based tripwire and intrusion detection filters out false triggers caused by animals, moving foliage, and light changes, targeting only human and vehicle classifications. SMD Plus adds a secondary recognition layer to further refine alarm accuracy before any alert is escalated to operators.
Auto-Tracking
Once a rule is triggered or tracking is initiated manually, the camera automatically pans, tilts, and zooms to keep a defined target within frame. This removes the need for an operator to manually steer the PTZ during an active event, making it practical for sites with limited monitoring personnel.
300 Presets, Tours, and Idle Motion
Support for 300 saved presets, 8 patrol tours (each with up to 32 preset stops), 5 patterns, and 5 scanning sequences allows the camera to follow a structured monitoring routine across a large site. Power-off memory ensures programmed positions are retained after any power interruption.
IP67, IK10 and 6KV Lightning Protection
The metal housing is rated IP67 for full dust and water immersion resistance and IK10 for impact protection, while TVS 6000V surge and lightning protection and a 25% input voltage tolerance make this camera suitable for exposed outdoor poles and elevated mounting positions in storm-prone environments.
Best For
- Large Car Parks and Open Yards: The 360-degree pan range, 25x optical zoom, and auto-tracking allow a single camera to scan a wide area and lock onto a target, reducing the number of fixed cameras required across an open site.
- Industrial Perimeter Fence Lines: AI tripwire and intrusion detection classified by human or vehicle type, combined with 150 m IR range, provides actionable alerts along unlit fence lines without high false-alarm rates from environmental interference.
- Critical Infrastructure and Utilities: Operating reliably from -40 degrees C to +70 degrees C with 6KV lightning protection and IK10 impact resistance, this PTZ is suited to pole-mounted installations at substations, water treatment sites, and exposed industrial locations.
- Commercial Campuses and Large Retail Centres: Programmed patrol tours across 300 presets allow the camera to cycle through key zones automatically, with operators able to pull it off tour and steer it manually when a live event demands attention.
- Sites Requiring Evidence-Grade Footage at Distance: A DORI detect range of 1,724 m and an identify range of 172 m, combined with Smart H.265+ compression and up to 256 GB local microSD storage, supports situations where footage quality at long range is essential for review and investigation.
Why Choose the DH-SD5A425XA-HNR
The DH-SD5A425XA-HNR separates itself from entry-level PTZ cameras through the combination of a large 1/1.8″ sensor, genuine Starlight+ sensitivity at 0.001 lux in colour mode, and a confirmed DORI detection range of 1,724 m. These are not simply specification figures: they translate directly to useful footage at the distances a 25x PTZ is expected to cover. The confirmed SMD Plus and deep-learning perimeter protection go further than basic motion detection by classifying targets as human or vehicle before triggering an alarm, which significantly reduces nuisance alerts in complex outdoor environments. Face detection adds an additional layer of situational awareness. The camera also includes electronic image stabilisation, a mechanical day/night IR cut filter, 120 dB True WDR, and onboard 4 GB ROM for AI processing. Available through Security Wholesalers, the DH-SD5A425XA-HNR is a strong fit for installers specifying PTZ coverage on sites where both coverage range and AI accuracy are non-negotiable requirements.
Buyer Decision Tips
Power Supply Planning: The DH-SD5A425XA-HNR supports PoE+ (IEEE 802.3at) as well as AC24V/3A input. With IR illuminators active, power draw reaches 20W, which exceeds standard PoE (15.4W) capacity. Confirm your switch or injector delivers PoE+ output before installation, and check that cable runs stay within the 100 m Cat5e/Cat6 limit for PoE+ to avoid insufficient power delivery at the camera end.
Mounting Position and Auto-Tracking Effectiveness: Auto-tracking performance depends on the camera having a clear line of sight and being mounted high enough to avoid the IR beam reflecting off nearby surfaces at full zoom. Pole or elevated wall mounts at 5 m to 10 m height typically produce the most consistent tracking results across open yards and car parks. For sites with physical obstructions, supplement with fixed cameras at choke points rather than relying on the PTZ to track around corners.
Key Features & Technical Specifications
| Image Sensor |
1/1.8″ CMOS |
| Max. Resolution |
4MP (2560 x 1440) |
| Frame Rate |
Up to 25/30 fps at 4MP |
| Minimum Illumination |
Colour: 0.001 lux @ F1.6; B/W: 0.0001 lux @ F1.6; 0 lux (IR on) |
| IR Distance |
150 m (4 IR LEDs, Smart IR) |
| Optical Zoom |
25x (5.8 mm to 145 mm) |
| Digital Zoom |
16x |
| Field of View |
H: 59.8 to 2.8 degrees; V: 33.7 to 1.9 degrees |
| DORI Distance |
Detect: 1724 m; Observe: 689 m; Recognise: 344 m; Identify: 172 m |
| Pan/Tilt Range |
Pan: 0 to 360 degrees; Tilt: -15 to +90 degrees |
| Presets / Tours |
300 presets; 8 tours (up to 32 presets per tour) |
| AI Features |
SMD Plus, perimeter protection (tripwire/intrusion), auto-tracking, face detection, video structuralisation |
| WDR |
True WDR 120 dB |
| Compression |
H.265+ / H.265 / H.264+ / H.264 / MJPEG |
| Power Supply |
PoE+ (802.3at) or AC24V/3A; max 20W (IR on) |
| Edge Storage |
MicroSD up to 256 GB; FTP; P2P |
| Ingress Protection |
IP67; IK10; TVS 6000V lightning and surge protection |
| Operating Temperature |
-40 degrees C to +70 degrees C |
| Dimensions / Weight |
190 mm x 332 mm; 4.7 kg (net) |
| Interoperability |
ONVIF Profile S and G; CGI |
Ideal Use Cases
Outdoor Car Parks
360-degree pan, 25x optical zoom, and auto-tracking allow the DH-SD5A425XA-HNR to survey an entire car park from a single elevated mount, zooming into incidents automatically without operator intervention.
Industrial Yard and Warehouse Perimeters
AI tripwire and intrusion detection filtered to human and vehicle classifications, combined with 150 m IR range, makes this PTZ effective for monitoring large unlit yards where environmental false alarms from standard motion detection would be unworkable.
Construction Sites
Programmed patrol tours across 300 presets allow the camera to sweep a construction site on a timed schedule overnight, while power-off memory retains all settings through power interruptions common on active construction sites.
Transport Hubs and Logistics Depots
Video structuralisation with detection of motor vehicles, non-motor vehicles, and humans supports situational awareness across busy logistics yards, while the DORI identify range of 172 m provides useful detail even at the far end of a large loading dock.
Critical Infrastructure and Utilities
Rated for operation between -40 degrees C and +70 degrees C with TVS 6000V lightning protection and a 25% input voltage tolerance, this PTZ suits pole-mounted installations at remote substations, water treatment facilities, and communications infrastructure sites.
Large Commercial Campuses
Operators can assign up to 8 patrol tours covering multiple buildings, entrances, and open areas. When a face detection or perimeter alert fires, the camera can break from its tour, respond to the event, and return to its automated schedule automatically.
Choosing the Right Model
- Choose this model if: Your site requires a single camera to actively track moving subjects across a large outdoor area, needs AI perimeter protection with human and vehicle classification to manage false alarm rates, and demands 150 m IR coverage in complete darkness with Starlight+ colour sensitivity in very low light.
- Choose a different model if: Your application is a small indoor area, a fixed shopfront, or a corridor where a PTZ’s pan/tilt range and zoom capability provide no practical benefit over a fixed dome or turret camera. For those scenarios, a fixed AI camera will deliver comparable image quality at lower cost and with simpler installation.
- Choose a different model if: Your switch does not support PoE+ and AC24V cabling is not practical. Standard PoE switches (802.3af) cannot reliably power this unit with IR active, so an infrastructure upgrade would be needed before this camera can be deployed.
FAQs
- Does the DH-SD5A425XA-HNR require PoE+ or will a standard PoE switch work?
This camera requires PoE+ (IEEE 802.3at) when powered over Ethernet, as it draws up to 20W with IR illuminators active. Standard PoE (802.3af) is rated at 15.4W and will not reliably power the unit at full load. Confirm your switch or midspan injector delivers PoE+ before installation. AC24V/3A is an alternative if PoE+ infrastructure is not available on site.
- How far can the camera detect and identify subjects using its 25x zoom?
The confirmed DORI figures for the DH-SD5A425XA-HNR are: detect at 1,724 m, observe at 689 m, recognise at 344 m, and identify at 172 m. These distances reflect the camera at maximum zoom under standard DORI methodology. In practical outdoor deployments, environmental conditions such as haze, rain, and lighting will affect achievable performance.
- What is the difference between SMD Plus and standard motion detection on this camera?
Standard motion detection triggers on any pixel change in the scene, including moving leaves, insects, rain, and shadows. SMD Plus uses deep-learning classification to filter these environmental triggers and only raises an alert when the detected subject is confirmed as a human or vehicle. This is distinct from basic motion detection and substantially reduces nuisance alarms on exposed outdoor sites.
- Can the camera be set to automatically return to a preset position when no tracking event is active?
Yes. The idle motion function allows the camera to revert to a saved preset, patrol tour, pattern, or scanning sequence after a defined period of inactivity. This means the camera continues structured monitoring automatically between triggered events without requiring operator input.
- Is the DH-SD5A425XA-HNR suitable for pole mounting in an exposed outdoor environment?
The camera is built for demanding outdoor installation. Its IP67 rating confirms complete dust ingress protection and water immersion resistance, IK10 provides protection against physical impact, and TVS 6000V lightning and surge protection covers the unit against electrical events. Operating temperature from -40 degrees C to +70 degrees C means it is suited to Australian conditions from alpine to tropical environments.
- Does the camera support local storage without a recorder?
Yes. The DH-SD5A425XA-HNR supports a microSD card up to 256 GB for local edge recording, as well as FTP upload and P2P connectivity. This allows standalone operation or use as a backup recording source independent of a connected NVR, which is useful for remote sites with limited network bandwidth.
- Is the DH-SD5A425XA-HNR compatible with third-party VMS platforms?
The camera conforms to ONVIF Profile S and G standards, which enables integration with any ONVIF-compliant video management system regardless of manufacturer. It also supports CGI and a broad network protocol stack including RTSP, RTP, and SNMP. For Dahua-native management, it is compatible with Smart PSS, DSS, and the Easy4ip mobile app. This model is part of the Security Wholesalers range and is backed by local product support for Australian installers.
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Additional Information
