The Dahua SD6C3425GB-HNR-A-PV1 4MP 25x Starlight TiOC Network PTZ Camera is designed for expansive outdoor surveillance. It's ideal for monitoring large areas, offering detailed views and active deterrence features. This camera provides comprehensive security by combining powerful zoom with intelligent detection, making it a reliable solution for various environments.
Key Features
-
25x Optical Zoom: Get incredibly close to distant subjects without losing clarity, perfect for monitoring large properties or vast perimeters.
-
Starlight Technology: Capture clear, detailed color images even in extremely low-light conditions, extending visibility beyond typical night vision.
-
Perimeter Protection: Smartly filters out false alarms caused by environmental factors, ensuring you're only notified of real threats from humans or vehicles.
-
Face Detection: Automatically identifies and captures faces, providing crucial evidence and aiding in identification.
-
Red and Blue Warning Light & Customizable Sound Warning: Actively deter intruders with highly visible flashing lights and a loud, customizable siren, turning the camera into a proactive security measure.
-
Auto Tracking 3.0: The camera automatically follows moving subjects, keeping them in view and ensuring continuous monitoring of suspicious activity.
-
SMD 4.0 (Smart Motion Detection): Precisely differentiates between humans and vehicles, significantly reducing false alarms from animals or environmental disturbances.
-
Dual Illuminators (IR and White Light): Provides both invisible infrared night vision for discreet monitoring and bright white light for full-color night vision and active deterrence.
Perfect For:
- Large commercial properties
- Parking lots and garages
- Construction sites
- Industrial facilities
- Public parks and open spaces
- Residential estates with extensive grounds
InstallerTips
- For optimal auto-tracking and DORI performance, consider mounting the camera at a height that provides an unobstructed view of the target area, ideally between 3 to 6 meters (10 to 20 feet) for most applications.
- Utilize PoE+ (802.3at) for simplified installation, as it provides both power and data over a single Ethernet cable, reducing cabling complexity.
- When deploying in low-light environments, leverage the Starlight Technology by ensuring sufficient ambient light or configuring the dual illuminators for full-color night vision.
- Integrate this PTZ camera with a compatible AI NVR to fully utilize features like AcuPick for rapid target searches and advanced video metadata analysis.
- For construction site monitoring, carefully define zones for helmet and uniform compliance detection and ensure sample images are 1080p JPGs for accurate recognition.
- Before finalizing the installation, test the red and blue warning lights and customizable sound warning features to confirm their effectiveness in deterring potential intruders.
Downloads
Quick-Read Specs
Feature
|
Detail |
Resolution
|
8 Megapixel (3840 × 2160)
|
Lens Options
|
2.8mm, 3.6mm Fixed-focal
|
Night Vision Type
|
Smart Dual Light (IR up to 30m, Warm Light up to 30m for Full-Color)
|
Deterrence
|
Red & Blue Strobe Lights + 110dB Siren
|
AI Features
|
SMD 4.0, AcuPick, AI SSA, Perimeter Protection (Human/Vehicle Classification), Face Detection
|
| Audio |
Built-in Dual Microphones + Built-in Speaker (Two-Way Talk)
|
Storage
|
Supports up to 512GB Micro SD Card
|
| Power |
12VDC / PoE (Power over Ethernet)
|
Weather Rating
|
IP67 |
What is TIOC?
TiOC stands for Three-in-One Camera, combining Full-Colour Video, Active Deterrence, and AI Detection into one powerful security solution.
With TiOC cameras, you get:
-
Full-Colour Footage 24/7 – even at night, thanks to Smart Dual Illuminators.
-
Smart AI Detection – accurately identifies humans and vehicles, filtering out false
alarms caused by animals, trees, or shadows.
-
Active Deterrence – red and blue warning lights plus a loud siren to stop intruders in their tracks.
These features work together to give you fast, accurate alerts and clear footage any time of day.
How Does It Work?
1. Full-Colour Night Vision with Smart Dual Illuminators
TiOC cameras automatically switch between infrared and LED lighting. When no threat is detected, they use discreet IR. When a person or vehicle enters the scene, the LED lights activate to record in full colour—helping you capture every detail clearly.
2. AI-Powered Detection
Using SMD 4.0 (Smart Motion Detection) and Perimeter Protection, the camera can tell the difference between a person, vehicle, animal, or object. This means:
- You get alerts only when it matters.
- False alarms are reduced to less than 1%.
3. Active Deterrence
When a genuine threat is detected, the camera activates built-in red and blue strobe lights along with a loud audible siren to immediately deter intruders. This proactive response helps prevent incidents before they occur. Users can schedule deterrence features to operate during specific hours—such as overnight—or customise them to suit their needs. For added convenience, a one-touch disarm function allows quick cancellation of the siren when necessary.
Extra Info
Starlight Technology for Superior Low-Light Performance
This camera employs Starlight Technology, which is a significant leap forward in low-light surveillance. Unlike traditional cameras that switch to black and white in dim conditions, Starlight technology leverages a larger sensor and advanced image processing to capture more light. This allows the camera to produce clear, vibrant color video even in environments with minimal ambient light, such as dimly lit parking lots or moonlit fields. This means you can distinguish colors of vehicles, clothing, and other critical details even after dark, enhancing situational awareness and forensic capabilities.
SMD 4.0 and AcuPick for Intelligent Detection and Rapid Search
The SMD 4.0 (Smart Motion Detection) feature is powered by deep learning algorithms, allowing the camera to accurately differentiate between human and vehicle movements and other insignificant motions like animals, rain, or swaying trees. This dramatically reduces false alarms, ensuring you only get notified about true security events. Complementing SMD 4.0 is AcuPick. When paired with a compatible back-end NVR, AcuPick allows you to quickly and precisely locate human and vehicle targets within recorded video. Instead of manually scrubbing through hours of footage, you can simply click on a specific human or vehicle event, and AcuPick will pinpoint all related instances, saving significant time during investigations.
Active Deterrence: Beyond Monitoring
This camera goes beyond passive monitoring with its Active Deterrence capabilities. It features prominent red and blue warning lights that can be configured to flash for a set duration and frequency upon detection of an intrusion. These highly visible lights serve as a powerful visual deterrent, often enough to scare off potential threats. In addition to the lights, the camera includes a customizable sound warning. You can upload your own audio files, such as a siren, a verbal warning, or even a dog barking, to play automatically when an alarm is triggered. This combination of visual and auditory warnings provides a robust, proactive security solution that can prevent incidents before they escalate.
Advanced AI for Specific Applications: Construction Detection
Beyond general perimeter protection and face detection, this camera offers specialized Construction Detection. This intelligent feature can monitor construction sites for critical safety and compliance issues. It can detect if workers are wearing specific helmet colors (red, orange, yellow, blue, white, black) or if they are not wearing a helmet at all, triggering an alarm for non-compliance. Furthermore, it supports work uniform compliance detection, allowing you to upload up to 5 uniform sample libraries (1,000 images total). If a detected uniform's similarity to the samples falls below a set threshold, an alarm is triggered. It can also detect attributes like whether a person is wearing a mask or shoe covers, and even trigger alarms if only one person is present in a designated area or if an area becomes unmanned, ensuring site safety and security protocols are followed.
Cybersecurity Protections
Dahua builds in strong cybersecurity protections including encrypted video streams, secure firmware updates, and access controls. This guards against data breaches or unauthorized remote access — a key consideration for business and home networks alike.
More About AcuPick - Smart Video Search with Precision AI
Dahua’s AcuPick technology revolutionises video surveillance by using advanced AI to pinpoint people or vehicles across recorded footage with remarkable speed and accuracy. Instead of scrubbing through hours of video manually, AcuPick enables users to filter footage by specific targets, drastically cutting down search times and boosting operational efficiency. Integrated into a range of Dahua cameras (including TiOC series) and compatible NVRs, AcuPick delivers a seamless and intelligent search experience.
Highlights of AcuPick:
AI-Driven Precision:
AcuPick leverages intelligent algorithms to differentiate between human and vehicle activity, refining search results to what truly matters.
Smart Filtering:
Search footage using key attributes like clothing colour or vehicle type—no need to know the exact time an incident occurred.
Instant Video Recall:
With just a few clicks, users can zero in on critical moments, improving response times and streamlining investigations.
False Alarm Reduction:
By filtering out irrelevant motion, AcuPick helps reduce nuisance alerts, leading to more reliable monitoring.
Flexible Deployment:
Whether through Dahua's smart cameras or NVR integration, AcuPick fits into a wide range of security setups.
Practical Applications:
-
Retail & Offices: Track customer flow or monitor for unauthorized access.
-
Car Parks & Garages: Instantly retrieve footage of accidents or suspicious activity.
-
Public Spaces: Quickly find persons of interest using visual identifiers.
-
Residential Estates: Enhance safety by identifying vehicle movements or visitors.
AcuPick transforms surveillance from reactive monitoring to proactive intelligence, saving time while elevating security across the board.
Q&A
Q: Can this camera record in color at night?
A: Yes, absolutely! Thanks to its Starlight technology and dual illuminators (IR and white light), this camera can capture clear, full-color video even in very low-light conditions. When it's too dark for Starlight, the white light illuminators can activate to provide color images.
Q: How loud is the customizable sound warning?
A: While the exact decibel level isn't specified, the sound warning is designed to be highly audible and effective as a deterrent, similar to a security siren. You can also customize the sound, allowing you to choose an alert that best suits your needs.
Q: Can the red and blue warning lights be disabled?
A: Yes, you have full control over the active deterrence features. The red and blue warning lights can be configured to flash for specific durations and frequencies, or you can disable them entirely if not needed.
Q: Does this camera work with NVRs from other brands?
A: This camera supports ONVIF (Profile S, G, and T), which is an industry standard for IP-based security products. This means it should be compatible with many third-party NVRs that also support ONVIF, though full functionality of advanced AI features might require a compatible Dahua AI NVR.
Q: How long can the 512 GB microSD card record for?
A: The recording duration on a 512 GB microSD card depends on several factors, including the chosen resolution, frame rate, video compression (H.265 is more efficient), and the amount of motion detected. For continuous recording at 4MP, it could be several days to a week. Event-based recording (triggered by SMD, etc.) would significantly extend this.
Q: What makes this camera different from a standard PTZ camera without TiOC or AI features?
A: The "TiOC" (Three-in-One Camera) designation signifies that this camera combines 24/7 full-color monitoring (Starlight), active deterrence (red/blue lights + siren), and AI capabilities (like SMD 4.0, Perimeter Protection, Face Detection, Auto Tracking 3.0). A standard PTZ might offer zoom and pan/tilt, but it typically lacks the advanced AI analytics for accurate detection, proactive deterrence features, and superior low-light color imaging that this TiOC camera provides.
Q: Will the siren activate automatically, or do I have to trigger it manually?
A: The siren (customizable sound warning) can be configured to activate automatically based on defined rules, such as a Perimeter Protection intrusion event or Motion Detection by a human or vehicle. You can also trigger it manually through the management software or mobile app.
Camera Model Comparison
Dahua SD6C3425GB-HNR-A-PV1 (Newer Model) vs. Dahua SD6CE225U-HNI (Older Model)
| Category |
Newer Model (SD6C3425GB-HNR-A-PV1) |
Older Model (SD6CE225U-HNI) |
| Image Sensor |
1/2.8" 4Megapixel STARVIS™ CMOS |
1/2.8" 2Megapixel STARVIS™ CMOS |
| Max. Resolution |
2560 (H) × 1440 (V) (4MP) |
1920 (H) × 1080 (V) (2MP) |
| Min. Illumination (Color) |
0.005 lux@F1.6 |
0.005 lux@F1.6 |
| Min. Illumination (B/W) |
0.0005 lux@F1.6 |
0.0005 lux@F1.6 |
| Optical Zoom |
25× |
25× |
| Focal Length |
5 mm–125 mm |
4.8 mm–120 mm |
| Max. Aperture |
F1.6–F3.6 |
F1.6–F4.4 |
| IR Distance |
150 m (492.13 ft) |
Up to 200 m (656 ft) (Note: Some datasheets for SD6CE225U-HNI also list 150m) |
| White Light Illumination Distance |
50 m (164.04 ft) (White light) |
Not explicitly stated for white light; typically IR only for this older model. |
| Illuminator Type |
2 (IR), 2 (Dual light fusion - for TiOC features) |
6 (IR LEDs) |
| Active Deterrence |
Red and blue warning light, Customizable sound alarm |
No active deterrence features |
| AI Features (Intelligence) |
Video Metadata (motor/non-motor vehicles, human bodies, faces, attributes), Perimeter Protection (Tripwire, intrusion, etc., with vehicle/human alarm classification, linkage tracking), Face Detection (with attribute extraction, cutout), Construction Detection, Auto Tracking 3.0, SMD 4.0, Acupick, Auto Patrol |
Auto-tracking, IVS (Tripwire, Intrusion, Abandoned/Missing), Face Detection, Heat Map |
| DORI Distance (Detect) |
2,500 m (8202.10 ft) |
1613 m (5292 ft) |
| DORI Distance (Observe) |
987.5 m (3239.83 ft) |
646 m (2119 ft) |
| DORI Distance (Recognize) |
500 m (1640.42 ft) |
323 m (1060 ft) |
| DORI Distance (Identify) |
250 m (820.20 ft) |
161 m (528 ft) |
| Video Compression |
H.264H; H.264B; Smart H.265+; H.264; H.265; MJPEG (Sub Stream); Smart H.264+ |
H.265+/H.265/H.264+/H.264/MJPEG (SubStream) |
| RAM/ROM |
RAM: 1 GB, ROM: 4 GB |
RAM: 1024M, ROM: 128M |
| Storage |
FTP/SFTP; Micro SD card (512 GB); NAS |
Micro SD card (up to 256 GB); NAS |
| Audio I/O |
1/1 |
1/1 |
| Alarm I/O |
2/1 |
7/2 |
| Power Consumption (Max) |
23 W (illuminator + red and blue warning light + speaker + PTZ working) |
25 W (IR On, Heater On) |
| Protection |
IP66; TVS 6000 V lightning proof; surge protection; voltage transient protection |
IP67, IK10 |
| Product Dimensions |
325.3 mm × Φ202.0 mm (12.81" × Φ7.95") |
φ209 × 337.4 mm |
| Net Weight |
4.6 kg (10.14 lb) |
5.8 kg (12.79 lb) |
Summary Recommendation
-
Choose the Newer Model (SD6C3425GB-HNR-A-PV1) if:
- You require higher resolution (4MP) for finer detail.
- Active deterrence features (red and blue warning lights, customizable sound) are crucial for immediate incident response.
- Advanced AI capabilities like Video Metadata, enhanced Perimeter Protection with vehicle/human classification, Construction Detection, Auto Tracking 3.0, SMD 4.0, and Acupick are desired for more intelligent surveillance and forensic search.
- You need longer DORI distances, indicating better detection, observation, recognition, and identification capabilities at greater ranges.
- You plan to use a larger microSD card (up to 512GB).
- The camera needs to integrate with a full-color illuminator for improved visibility in specific scenarios.
-
The Older Model (SD6CE225U-HNI) might still be suitable if:
- Your budget is a primary concern, and 2MP resolution is sufficient for your monitoring needs.
- The active deterrence features and the very advanced AI functionalities of the newer model are not essential for your application.
- You require a slightly longer IR distance (up to 200m, though some newer models match this).
- Vandal resistance (IK10) is a critical requirement, which the older model offers.
- You need more alarm input/output ports (7/2 vs 2/1).
