Dahua 4MP WizSense DH-SD5A425GA-HNR PTZ Camera with 25x Optical Zoom, AcuPick & 150m IR

Product SKU: DH-SD5A425GA-HNR

Product Overview

The Dahua DH-SD5A425GA-HNR is a 4MP WizSense network PTZ camera designed for long-range surveillance across car parks, warehouses, farms, loading yards, entry gates and commercial perimeters. Its 5.4–135mm motorised lens provides 25× optical zoom, allowing operators to move from a broad overview to a narrow view of distant activity without relying only on digital enlargement. A 1/1.8-inch CMOS sensor, Starlight+ low-light technology, 140dB WDR and infrared illumination up to 150 metres support detailed monitoring across difficult day and night conditions. Auto Tracking 3.0, SMD 4.0, perimeter protection and AcuPick-assisted search with a compatible Dahua AI NVR help operators locate and follow relevant human or vehicle events. The camera also supports endless 360° pan, microSD storage up to 512GB, PoE+ and 24V DC power. It provides line-level audio connections but does not have a confirmed built-in microphone or speaker.

Key Capabilities

Best For

• Car Parks and Vehicle Entrances: Provides broad PTZ coverage with optical zoom for checking distant vehicles, gates and movement events.
• Warehouses and Loading Yards: Monitors large operational areas where operators need to reposition the camera and inspect activity at different distances.
• Farms and Rural Properties: Supports long-range infrared surveillance around sheds, driveways, machinery areas and property approaches.
• Commercial Perimeters: Uses intelligent perimeter rules, human and vehicle classification and automatic tracking around fences and site boundaries.
• Staffed Security Systems: Suits applications where operators actively control PTZ movement or review tracked events through a compatible recorder or management platform.

Why Choose the DH-SD5A425GA-HNR

The DH-SD5A425GA-HNR is better suited to wide outdoor sites than a basic fixed camera when operators need to inspect activity at changing distances. Its 25× optical zoom, rapid preset movement and 150m infrared range allow one PTZ position to observe broad areas and then move in for a closer view. Auto Tracking 3.0, SMD 4.0 and intelligent perimeter rules also provide more targeted event handling than standard motion detection, while AcuPick adds faster human and vehicle retrieval when the camera is paired with a compatible AI recorder. Available through Security Wholesalers, this model is a practical choice for monitored commercial, industrial and rural sites. Fixed cameras may still be required where every direction must remain recorded continuously while the PTZ is viewing another area.

Buyer Decision Tips

Key Features & Technical Specifications

Resolution and Sensor	4MP progressive-scan 1/1.8-inch CMOS sensor with a maximum resolution of 2560 × 1440.
Lens	5.4–135mm motorised lens with F1.6–F4.0 aperture and 25× optical zoom.
Field of View	Horizontal 61.6°–3.6°, vertical 35.7°–2° and diagonal 66.6°–4°.
DORI Distance	Detect 1724m, observe 689m, recognise 344m and identify 172m under the DORI standard.
Low-Light Performance	Colour 0.001 lux at F1.6, monochrome 0.0001 lux at F1.6 and 0 lux with infrared active.
Infrared Illumination	Four infrared illuminators with a listed range of up to 150m.
PTZ Movement	Endless 360° pan and -15° to +90° tilt with 180° automatic flip.
PTZ Speeds	Manual pan up to 300°/s, manual tilt up to 140°/s, preset pan up to 400°/s and preset tilt up to 300°/s.
PTZ Programming	300 presets, eight tours, five patterns, five scans, power-off memory and configurable idle motion.
Auto Tracking	Supports Auto Tracking 3.0 with manual or rule-triggered tracking.
Perimeter Protection	Includes tripwire, intrusion, loitering, fast movement, parking, fence climbing, abandoned or missing object and people-gathering rules.
SMD and AcuPick	SMD 4.0 human and vehicle classification with AcuPick or Quick Pick retrieval through a compatible Dahua AI NVR.
Face Detection	Supports face detection, snapshots, image enhancement, preferred-image selection and listed face-attribute extraction.
Image Enhancement	140dB WDR, BLC, HLC, 2D and 3D noise reduction, electronic image stabilisation, electronic defog and ROI.
Video and Compression	Up to 25/30fps at 4MP with three streams, Smart H.265+, H.265, Smart H.264+, H.264 and MJPEG support.
Storage	Supports a microSD card up to 512GB, FTP, SFTP and NAS storage.
Audio and Alarm Interfaces	One line-level audio input, one line-level audio output, two alarm inputs and one alarm output.
Network Compatibility	10/100Mbps Ethernet with ONVIF Profiles S, G and T, CGI and SDK support.
Power	24V DC at 2.5A ±25% or PoE+ under IEEE 802.3at; 12W basic and 21W maximum consumption.
Protection, Size and Weight	IP67, IK10 and 6000V surge protection; Φ190 × 332mm; net weight 4.7kg.

Ideal Use Cases

Choosing the Right Model

• Choose this model if: The site needs 4MP PTZ coverage, 25× optical zoom, 150m infrared and automatic human or vehicle tracking.
• Choose a fixed camera if: The monitored area must remain continuously recorded from the same viewing direction.
• Choose a higher-zoom PTZ if: The required subject identification distance exceeds the practical capability of the 135mm telephoto position.
• Use a compatible AI NVR if: AcuPick-assisted human and vehicle retrieval is required.
• Confirm lifecycle availability if: The camera is being specified for a new project rather than replacing an existing matching unit.

FAQs

1. Is the DH-SD5A425GA-HNR suitable for large outdoor areas?
   The DH-SD5A425GA-HNR is designed for long-range outdoor surveillance where one operator-controlled camera must cover broad areas such as car parks, warehouses, farms, loading yards and property perimeters. Its endless 360° pan, 25× optical zoom and 150m infrared illumination support wide-area monitoring. Placement and mounting height should still be planned around the required identification distance, viewing obstructions and the areas that need continuous fixed coverage.
2. How much detail does the 25× optical zoom provide?
   The 5.4–135mm motorised lens provides 25× optical zoom, changing the horizontal field of view from approximately 61.6° at the wide end to 3.6° when fully zoomed. Optical zoom preserves more useful image detail than digital enlargement when an operator needs to inspect a distant gate, vehicle or perimeter event. Identification performance still depends on distance, lighting, atmospheric conditions and correct focus.
3. What do Auto Tracking 3.0 and perimeter protection do?
   Auto Tracking 3.0 can control the camera’s pan, tilt and zoom movements to keep a triggered target in view. Perimeter rules include tripwire, intrusion, loitering, fast movement, parking, climbing-fence and people-gathering detection, with human and vehicle classification on supported events. Tracking performance depends on correct rule placement, target visibility, mounting position and scene conditions, so commissioning is important for reliable operation.
4. How does AcuPick work with this PTZ camera?
   AcuPick, also described as Quick Pick in the technical documentation, works with a compatible Dahua AI NVR to retrieve human and vehicle targets from SMD event recordings. It helps reduce the time spent reviewing unrelated footage by prioritising relevant matches. The search function is not provided by the camera alone; the selected recorder, firmware and system configuration must support the feature for it to be available.
5. Can the DH-SD5A425GA-HNR see in complete darkness?
   Yes. The camera has four infrared illuminators with a listed range of up to 150 metres and can operate at 0 lux when the IR lighting is active. Starlight+ technology also supports colour imaging in very low light, with a listed minimum of 0.001 lux at F1.6. Actual night performance varies with zoom position, scene reflectivity, weather, nearby lighting and installation height.
6. Does this camera include built-in two-way audio?
   No. The DH-SD5A425GA-HNR provides one line-level audio input and one line-level audio output through bare-wire connections, but the official specifications do not confirm a built-in microphone or speaker. External compatible audio equipment is required when audio is needed. Do not describe the camera as providing built-in two-way audio unless the complete installation includes suitable external devices and the recorder or management platform is correctly configured.
7. What power, storage and network options are available?
   The camera can be powered by 24V DC at 2.5A or PoE+ under IEEE 802.3at. It includes a 10/100Mbps Ethernet port and supports a microSD card up to 512GB, together with FTP, SFTP and NAS storage. Local storage media and the 24V power supply are not stated as included. Network bandwidth, retention and event recording should be planned around the chosen resolution, frame rate and compression settings.
8. How do I confirm that this PTZ suits my CCTV project?
   Choose this model when the site needs 4MP detail, long-range infrared, 25× optical zoom, automatic tracking and outdoor PTZ coverage rather than continuous fixed views in every direction. Confirm the mounting method, power source, NVR compatibility, storage plan and required identification distances before ordering. When planning through Security Wholesalers, provide the site layout and recorder model so the camera’s AI, search and control functions can be checked together.

Additional Information

Dahua DH-SD5A425GA-HNR Datasheet