How does active deterrence work on the Dahua DH-SD4E425GB-HNR-A-PV1?

The camera can activate red and blue warning lights and play one of 11 built-in alarm sounds when a configured event occurs. Custom warning audio can also be imported. The lights can flash for 5 to 30 seconds at a selected frequency. Deterrence performance depends on correct rule placement, target classification, speaker volume, site noise, camera position and local operating requirements.

Does the camera provide white light as well as infrared?

Yes. Dahua specifies infrared illumination up to 100 metres and white-light illumination up to 50 metres. The dual-light system can support colour video when white light is active, while IR supports discreet black-and-white night monitoring. Practical range depends on zoom position, target reflectivity, rain, fog, nearby surfaces and mounting height. White-light use should be configured to avoid unnecessary glare or nuisance.

How much detail does the 25× optical zoom provide?

The 5–125mm motorised lens provides 25× optical zoom, changing the horizontal field of view from approximately 51.9° to 3.0°. Optical zoom places more image detail on distant subjects than digital enlargement, but recognition performance still depends on distance, lighting, atmospheric conditions, target movement, camera stability, mounting height and the recorder or monitoring platform used with the camera.

What is Auto Tracking 3.0?

Auto Tracking 3.0 controls pan, tilt and zoom to keep a detected moving target within the camera view. Tracking can be started manually or linked to configured intelligent rules. The camera can zoom towards the target and follow its movement, but tracking accuracy depends on scene calibration, obstructions, overlapping targets, lighting, target speed, rule design and compatible firmware or recorder configuration.

Which intelligent analytics are supported?

The camera supports SMD 4.0, AcuPick, face detection and perimeter-protection rules with human and vehicle classification. Listed IVS functions include tripwire, intrusion, fence crossing, loitering, abandoned or missing object, fast movement, parking and people gathering. AcuPick works with compatible back-end equipment to locate people and vehicles in live or recorded video. Analytics require suitable scene design and calibration.

Does this PTZ have a built-in microphone and speaker?

The camera has a built-in speaker used for active-deterrence sound warnings, and Dahua lists one audio input and one audio output. A built-in microphone is not stated in the official specification, so external audio equipment may be required for listening or two-way communication. Audio performance and legal use depend on the connected equipment, recorder configuration, speaker settings, installation environment and applicable privacy requirements.

Can the camera use PoE and record to a microSD card?

Yes. The DH-SD4E425GB-HNR-A-PV1 supports IEEE 802.3at PoE+ or 12V DC at 3A, with a listed maximum consumption of 13W when illumination, heater, PTZ movement and speaker are operating. It also supports microSD storage up to 512GB, FTP or SFTP and NAS. Confirm the switch power budget, network bandwidth, surge protection and storage-card endurance for the intended recording workload.

What should I confirm before ordering this active-deterrence PTZ?

Confirm the required zoom distance, active-deterrence coverage, NVR or VMS compatibility, PoE+ capacity, storage, audio requirements and mounting structure. A PTZ only records the direction it is viewing, so fixed cameras may still be needed for continuous evidence at critical points. Security Wholesalers can assist with matching the camera to compatible recorders, switches and Dahua mounting accessories.

Dahua 4MP WizSense DH-SD4E425GB-HNR-A-PV1 PTZ Camera with 25x Zoom, Active Deterrence & 100m IR

$671.00

FREE DELIVERYWARRANTY GUARANTEED

✔ Dedicated 5★ Customer Care Team ✔ Fast & Responsive Tech Support

The Dahua DH-SD4E425GB-HNR-A-PV1 delivers a 4MP WizSense PTZ camera designed for commercial sites, warehouses, car parks, perimeters and larger surveillance areas requiring flexible monitoring with deterrence capability. Featuring 25x zoom, active deterrence and infrared illumination up to 100m, it supports long-range day-and-night monitoring where operators need wide coverage and close-up detail.

It also includes WizSense intelligence, making this PTZ camera available at Security Wholesalers practical for sites needing smarter event detection and more responsive visual warning features. Its PTZ format suits compatible IP CCTV systems where directional control, extended night visibility and active security response are important.

Key Features

4MP Image Resolution: Captures detailed surveillance footage for clear monitoring and visual verification.
25x Zoom: Enables close-up viewing of distant areas for more flexible surveillance coverage.
Active Deterrence: Supports visual and audible warning functions to help deter unwanted activity.
100m IR Night Vision: Provides extended infrared illumination for suitable low-light and night-time applications.
WizSense Intelligence: Supports smarter event detection for more focused security monitoring.
PTZ Control: Allows pan, tilt and zoom operation for active coverage across larger surveillance areas.

Additional Information

Dahua DH-SD4E425GB-HNR-A-PV1 Datasheet

$671.00 inc GST +3 Year Warranty & Support

Description

Product SKU: DH-SD4E425GB-HNR-A-PV1

Product Overview

The Dahua DH-SD4E425GB-HNR-A-PV1 is a 4MP WizSense network PTZ camera combining 25× optical zoom, Auto Tracking 3.0 and active sound-and-light deterrence for large outdoor surveillance areas. Its 5–125mm motorised lens moves from a broad 51.9° horizontal view to a narrow 3.0° view, while smart dual illumination provides up to 100 metres of infrared coverage and 50 metres of white light. Red and blue warning lights work with 11 selectable alarm sounds and imported custom audio to respond visibly and audibly to configured events. SMD 4.0, AcuPick, face detection and human or vehicle perimeter classification support more targeted alarms and searches. Continuous 360° pan, PoE+, local microSD storage and IP66 protection support professional commercial installations.

Key Capabilities

25× Optical Zoom Coverage

The 5–125mm motorised lens moves from a 51.9° horizontal overview to a narrow 3.0° view for close inspection across large sites.

Active Sound and Light Deterrence

Red and blue warning lights combine with 11 selectable alarm sounds and custom audio import to provide immediate event-linked deterrence.

100m IR and 50m White Light

Smart dual illumination supports long-range infrared monitoring and visible white-light coverage for colour imaging and deterrence after dark.

Auto Tracking 3.0

Rule-triggered or manual tracking uses pan, tilt and zoom movement to keep supported moving targets in view and capture a more detailed trajectory.

WizSense Human and Vehicle Analytics

SMD 4.0, perimeter protection and AcuPick focus supported searches and alarms on people and motor vehicles.

Rugged IP66 Protection

IP66 construction, TVS 6000V lightning resistance, surge protection and operation from –40°C to +65°C support demanding outdoor installations.

Best For

Active Perimeter Deterrence: Uses warning lights and selectable sound alarms to respond to supported human or vehicle events.
Long-Range Monitoring: The 25× optical zoom and 100m IR support detailed surveillance across large commercial areas.
Automatic Target Following: Auto Tracking 3.0 keeps supported moving targets in view after manual or rule-based activation.
Night Colour and IR Coverage: White light supports colour imaging and visible deterrence, while IR provides longer-range black-and-white monitoring.
Commercial Outdoor Sites: IP66, surge protection and broad temperature tolerance suit car parks, warehouses, yards and campuses.

Why Choose the DH-SD4E425GB-HNR-A-PV1

The DH-SD4E425GB-HNR-A-PV1 combines high-speed PTZ coverage with the proactive response features of a TiOC-style security camera. Its 25× optical zoom, 100m IR, 50m white light and Auto Tracking 3.0 help operators investigate activity across large sites, while red/blue warning lights and a built-in speaker can deter supported targets before an incident escalates. SMD 4.0, perimeter protection and AcuPick reduce time spent reviewing irrelevant movement, and PoE+, local storage, audio and alarm I/O simplify integration. Supplied by Security Wholesalers, this camera is best specified with verified mounting, recorder, network, power and deterrence requirements.

Buyer Decision Tips

Deterrence Tip: Configure warning lights, sounds and rule schedules for the site rather than enabling every response continuously. Consider nearby residents, workers, traffic and privacy requirements when selecting volume, flash duration and operating periods.

Coverage Tip: A PTZ only records the direction it is viewing. Use fixed cameras for uninterrupted evidence at critical gates, entrances and boundaries while the PTZ is tracking or patrolling elsewhere.

Power and Mounting Tip: Confirm IEEE 802.3at PoE+ capacity, surge protection, earthing, cable sealing and structural support for the 2.6kg camera plus its selected mounting accessories.

Key Features & Technical Specifications

Model	DH-SD4E425GB-HNR-A-PV1
Product Type	4MP Starlight smart-dual-light WizSense network PTZ camera with active deterrence.
Image Sensor	1/2.8-inch CMOS.
Maximum Resolution	2560 × 1440.
Main-Stream Frame Rate	Up to 25/30fps at 4MP, 3MP, 1080p, 1.3MP or 720p.
Minimum Illumination	Colour: 0.005 lux at F1.6; black and white: 0.0005 lux at F1.6; 0 lux with illuminator active.
Infrared Illumination	Up to 100m using 2 IR illuminators.
White-Light Illumination	Up to 50m using 2 dual-light fusion illuminators.
Illumination Control	Zoom priority, manual, automatic or off.
Lens	5–125mm motorised zoom lens.
Optical Zoom	25×.
Digital Zoom	16×.
Maximum Aperture	F1.6–F3.6.
Field of View	Horizontal 51.9°–3.0°; vertical 39.7°–2.2°; diagonal 63.1°–3.7°.
Focus Control	Automatic, semi-automatic or manual.
Close Focus Distance	0.1–0.5m, depending on zoom position.
DORI Distance	Detect 2,500m, observe 987.5m, recognise 500m and identify 250m under the EN 62676-4 calculation.
Pan Range	0°–360° endless.
Tilt Range	–15° to +90° with 180° auto flip.
Manual PTZ Speed	Pan 0.1°–200°/s; tilt 0.1°–120°/s.
Preset Speed	Pan up to 240°/s; tilt up to 200°/s.
Presets and Routes	300 presets, 8 tours with up to 32 presets each, 5 patterns and 5 scans.
Power-Off Memory	Supported.
Idle Motion	Pattern, preset, scan or tour.
Perimeter Protection	Tripwire, intrusion, fence crossing, loitering, abandoned or missing object, fast movement, parking, people gathering and human/vehicle classification.
Auto Tracking	Auto Tracking 3.0 supported.
Face Detection	Face detection, tracking, snapshots, enhancement and attribute extraction; official key points state simultaneous capture of up to 32 faces.
SMD	SMD 4.0.
AcuPick	Supported with compatible back-end devices for person and vehicle search.
Auto Patrol	IVS-triggered PTZ movement and preset-based patrol.
Light Warning	Red and blue flashing warning lights, adjustable from 5 to 30 seconds with high, medium or low flash frequency.
Sound Warning	11 built-in alarm sounds with support for imported custom sounds.
Video Compression	Smart H.265+, H.265, Smart H.264+, H.264H, H.264B, H.264M and MJPEG on the sub stream.
Streaming	3 streams.
Image Processing	120dB WDR, BLC, HLC, 2D/3D noise reduction, electronic image stabilisation, electronic defog, ROI and 180° rotation.
Privacy Masking	Up to 24 areas, with up to 8 displayed in one view.
Network Interface	1 × RJ45 10/100 Base-T.
Interoperability	ONVIF Profiles S, G and T, CGI, SDK and P2P.
Simultaneous Users	20 users with total bandwidth up to 64Mbps.
Storage	MicroSD card up to 512GB, FTP/SFTP and NAS.
Management	DSS Pro, DMSS and compatible NVR.
Audio I/O	1 input and 1 output; built-in speaker used for deterrence warnings.
Alarm I/O	2 inputs and 1 output.
Alarm Linkage	Capture, recording, email, preset, pattern, tour, digital alarm input, audio and warning light.
Power Supply	12V DC, 3A ±10% or IEEE 802.3at PoE+.
Power Consumption	7W basic; maximum 13W with illuminator, heater, PTZ and speaker operating.
Operating Temperature	–40°C to +65°C.
Operating Humidity	Up to 95%.
Protection	IP66, TVS 6000V lightning protection, surge protection and voltage-transient protection.
Dimensions	269.9mm high × 160.0mm diameter.
Net Weight	2.6kg.
Gross Weight	4.0kg.
Certifications	CE and FCC standards listed by Dahua.

Ideal Use Cases

Commercial Car Parks

Use 25× optical zoom, Auto Tracking 3.0 and active warnings to monitor vehicle lanes, pedestrian areas and boundary incidents.

Warehouses and Logistics Yards

Presets, tours, 100m IR and human or vehicle classification support loading docks, gates, external storage and perimeter approaches.

Construction and Remote Sites

Red/blue lights, sound warnings and app or NVR event handling can provide visible deterrence where immediate on-site response is limited.

Industrial Compounds

IP66 protection, surge resistance and broad temperature tolerance support demanding outdoor locations when earthing and mounting are correctly engineered.

Retail and Shopping Precincts

High-speed PTZ movement, face detection and intelligent event filtering support active monitoring of entrances, service lanes and public areas.

Schools and Campuses

Long-range overview, tracking and configurable deterrence can support gates and open grounds when privacy, audio and warning-light policies are properly managed.

Choosing the Right Model

Choose the DH-SD4E425GB-HNR-A-PV1 if: You need 4MP PTZ coverage, 25× optical zoom, Auto Tracking 3.0 and active sound-and-light deterrence.
Choose a fixed TiOC camera if: Continuous evidence of one view is more important than pan, tilt and zoom movement.
Choose a higher-resolution PTZ if: More than 4MP detail is required for wide-area overview or digital evidence.
Choose a longer-zoom model if: The target distance and required pixel density exceed the capabilities of the 5–125mm lens.
Confirm audio requirements: The built-in speaker supports deterrence, while a built-in microphone is not listed and external audio may be required.

FAQs

How does active deterrence work on the Dahua DH-SD4E425GB-HNR-A-PV1?
The camera can activate red and blue warning lights and play one of 11 built-in alarm sounds when a configured event occurs. Custom warning audio can also be imported. The lights can flash for 5 to 30 seconds at a selected frequency. Deterrence performance depends on correct rule placement, target classification, speaker volume, site noise, camera position and local operating requirements.
Does the camera provide white light as well as infrared?
Yes. Dahua specifies infrared illumination up to 100 metres and white-light illumination up to 50 metres. The dual-light system can support colour video when white light is active, while IR supports discreet black-and-white night monitoring. Practical range depends on zoom position, target reflectivity, rain, fog, nearby surfaces and mounting height. White-light use should be configured to avoid unnecessary glare or nuisance.
How much detail does the 25× optical zoom provide?
The 5–125mm motorised lens provides 25× optical zoom, changing the horizontal field of view from approximately 51.9° to 3.0°. Optical zoom places more image detail on distant subjects than digital enlargement, but recognition performance still depends on distance, lighting, atmospheric conditions, target movement, camera stability, mounting height and the recorder or monitoring platform used with the camera.
What is Auto Tracking 3.0?
Auto Tracking 3.0 controls pan, tilt and zoom to keep a detected moving target within the camera view. Tracking can be started manually or linked to configured intelligent rules. The camera can zoom towards the target and follow its movement, but tracking accuracy depends on scene calibration, obstructions, overlapping targets, lighting, target speed, rule design and compatible firmware or recorder configuration.
Which intelligent analytics are supported?
The camera supports SMD 4.0, AcuPick, face detection and perimeter-protection rules with human and vehicle classification. Listed IVS functions include tripwire, intrusion, fence crossing, loitering, abandoned or missing object, fast movement, parking and people gathering. AcuPick works with compatible back-end equipment to locate people and vehicles in live or recorded video. Analytics require suitable scene design and calibration.
Does this PTZ have a built-in microphone and speaker?
The camera has a built-in speaker used for active-deterrence sound warnings, and Dahua lists one audio input and one audio output. A built-in microphone is not stated in the official specification, so external audio equipment may be required for listening or two-way communication. Audio performance and legal use depend on the connected equipment, recorder configuration, speaker settings, installation environment and applicable privacy requirements.
Can the camera use PoE and record to a microSD card?
Yes. The DH-SD4E425GB-HNR-A-PV1 supports IEEE 802.3at PoE+ or 12V DC at 3A, with a listed maximum consumption of 13W when illumination, heater, PTZ movement and speaker are operating. It also supports microSD storage up to 512GB, FTP or SFTP and NAS. Confirm the switch power budget, network bandwidth, surge protection and storage-card endurance for the intended recording workload.
What should I confirm before ordering this active-deterrence PTZ?
Confirm the required zoom distance, active-deterrence coverage, NVR or VMS compatibility, PoE+ capacity, storage, audio requirements and mounting structure. A PTZ only records the direction it is viewing, so fixed cameras may still be needed for continuous evidence at critical points. Security Wholesalers can assist with matching the camera to compatible recorders, switches and Dahua mounting accessories.

Compatible Accessories

PFB305W – Optional Wall Mount Bracket
PFA126 – Optional Junction Box
PFA111 – Optional Mount Adapter
PFB300C – Optional Ceiling Mount Bracket
PFB301C – Optional Ceiling Mount Bracket
PFA151 – Optional Corner Mount Bracket
PFB303S – Optional Parapet Mount Bracket
PFB301S-E – Optional Plane Mount Bracket
PFA150 – Optional Pole Mount Bracket
12V DC / 3A – Optional Power Adapter

Additional Information

Dahua DH-SD4E425GB-HNR-A-PV1 Datasheet

SKU: DH-SD4E425GB‌-HNR-A-PV1 Categories: Dahua, Dahua PTZ Cameras, Dahua WizSense Cameras