This PTZ camera is an ideal solution for comprehensive outdoor surveillance, offering powerful optical zoom and precise pan/tilt/zoom capabilities. It excels at capturing clear, long-distance video, even in challenging low-light conditions, thanks to its Starlight Technology and infrared illumination. This camera is perfect for anyone needing robust, all-in-one monitoring.
Features
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25x Optical Zoom: Get incredible detail from far away, allowing you to zoom in on specific areas without losing clarity.
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Starlight Technology: Capture bright, clear, and colorful video in extremely low-light environments, extending surveillance capabilities beyond traditional IR.
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100m IR Illumination: Provides excellent night vision up to 100 meters, ensuring reliable monitoring in complete darkness.
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Perimeter Protection: Smartly filters out false alarms caused by animals or environmental factors, ensuring you only get alerts for genuine threats like human or vehicle intrusion.
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Face Detection: Automatically detects, tracks, and captures high-quality face snapshots, assisting in identification and advanced analytics.
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SMD 4.0 (Smart Motion Detection): Accurately distinguishes between humans and vehicles, significantly reducing false alarms from irrelevant movements.
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IP66 Weatherproof: Built to withstand harsh outdoor conditions, ensuring reliable operation in rain, dust, and extreme temperatures.
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Flexible PTZ Control: Pan 360° endlessly and tilt from -15° to +90°, giving you complete control over monitoring large areas with ease.
Perfect For:
- Large commercial properties
- Parking lots and garages
- Industrial facilities
- Public squares and open areas
- School campuses
- Perimeter security for estates
Installer Tips
Optimal Placement for PTZ: Mount the camera at a height that allows for an unobstructed field of view across the entire desired surveillance area, maximizing its pan and tilt capabilities.
Leverage PoE+: Utilize PoE+ (802.3at) for simpler installation, as it delivers both power and data over a single Ethernet cable, reducing wiring complexity.
NVR Pairing for Advanced Features: For full utilization of AI features like AcuPick and advanced search capabilities, pair this camera with a compatible AI NVR.
Calibrate DORI Distances: While DORI provides general guidance, fine-tune the camera's zoom and focus settings during installation to optimize detection, observation, recognition, and identification for specific site conditions.
Privacy Masking: Take advantage of the privacy masking feature (up to 24 areas) to block out sensitive or private areas from surveillance, ensuring compliance with privacy regulations.
Consider External Audio/Alarm: If active deterrence (strobe/siren) is required, plan for external audio output and alarm devices connected via the camera's alarm I/O for integrated security responses.
Downloads
Quick-Read Specs
| Feature |
Detail |
| Resolution |
4MP (2560 x 1440) |
| Lens Options |
5 mm–125 mm (25x Optical Zoom) |
| Night Vision |
Starlight + 100m (328.08 ft) IR Distance |
| Deterrence |
No built-in deterrence features |
| AI Features |
Perimeter Protection, Face Detection, SMD 4.0, Acupick |
| Audio |
1x Input, 1x Output |
| Storage |
Micro SD card (up to 512 GB) |
| Power |
12 VDC/3A, PoE+ (802.3at) |
| Weather Rating |
IP66 |
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:
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Full-Colour Footage 24/7 – even at night, thanks to Smart Dual Illuminators.
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Smart AI Detection – accurately identifies humans and vehicles, filtering out false
alarms caused by animals, trees, or shadows.
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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 Night Vision
Dahua's Starlight Technology goes beyond traditional infrared. By combining advanced image processing with highly sensitive optics, this camera can produce clear, vibrant color video even in extremely low-light conditions where other cameras would only show black and white. This means that critical details like clothing color or vehicle hues remain visible throughout the night, offering a significantly higher level of evidence for investigations. It's particularly beneficial in environments with some ambient light, such as streetlights or distant building lights.
Intelligent Perimeter Protection
The camera's Perimeter Protection feature is a powerful tool for preventing false alarms. It leverages advanced algorithms to differentiate between genuine threats (humans and vehicles) and insignificant movements caused by animals, swaying trees, or strong light changes. This greatly improves the accuracy of alerts, ensuring that security personnel or property owners are only notified of events that truly matter, reducing alarm fatigue and allowing for more focused responses. You can set up virtual tripwires or intrusion zones to protect specific areas of interest.
SMD 4.0 and AcuPick for Efficient Incident Search
SMD 4.0 (Smart Motion Detection) is a significant upgrade in intelligent surveillance. It intelligently classifies detected objects as either human or vehicle, filtering out non-target movements. When combined with a compatible AI NVR, the innovative AcuPick technology becomes available. AcuPick utilizes deep learning algorithms to allow users to quickly search through live and recorded video feeds to locate specific human or vehicle targets with high accuracy. Instead of manually sifting through hours of footage, AcuPick helps you rapidly find the exact moments you need, streamlining investigations and saving valuable time.
Flexible Network and Storage Options
This camera offers robust network connectivity via its RJ-45 port, supporting a wide array of network protocols for seamless integration into existing systems. For storage, it provides versatile options including a Micro SD card slot supporting up to 512 GB for local recording, as well as FTP/SFTP and NAS support for centralized storage solutions. This flexibility ensures that you can choose the most suitable storage method based on your specific security needs and infrastructure, providing redundancy and accessibility for your recorded footage.
Pan, Tilt, Zoom Functionality with Smart Features
The PTZ capabilities of this camera offer extensive coverage, with a 360° endless pan and a -15° to +90° tilt range. Beyond manual control, the camera features intelligent PTZ functions such as 300 presets, 8 tours (each with up to 32 presets), 5 patterns, and 5 scans. The "Idle Motion" feature can automatically trigger a pattern, preset, scan, or tour after a period of inactivity, ensuring continuous monitoring. Furthermore, "Auto Patrol" enhances its intelligence by allowing the camera to link with IVS rules; when a target is detected by an IVS rule, the camera can automatically rotate to the target's position and then resume patrolling based on predefined presets, maximizing vigilance over an area.
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:
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Retail & Offices: Track customer flow or monitor for unauthorized access.
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Car Parks & Garages: Instantly retrieve footage of accidents or suspicious activity.
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Public Spaces: Quickly find persons of interest using visual identifiers.
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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
Q1: Can this camera record in color at night?
A1: Yes, thanks to its Starlight technology, this camera can capture clear and vivid color images in extremely low-light conditions. In complete darkness, its IR illuminators will engage, providing clear black and white video up to 100 meters.
Q2: Does this camera have a built-in speaker for two-way audio or a siren?
A2: This camera has an audio input and output, allowing you to connect an external microphone and speaker for two-way audio communication. However, it does not have a built-in speaker for a siren. You can link alarm events to trigger external alarm devices connected to its alarm I/O.
Q3: How long can the 512 GB microSD card record footage?
A3: The recording duration on a 512 GB microSD card will depend on various factors such as the resolution, frame rate, video compression (Smart H.265+ will significantly extend recording time), and the amount of motion detected. Smart H.265+ can reduce bit rate and storage requirements by up to 70% compared to standard H.265. For precise calculations, refer to the camera's bit rate specifications and available online storage calculators.
Q4: Can the IR illuminators be disabled if I don't want them on?
A4: Yes, the illuminator control offers "Off" as an option, along with Zoom Prio, Manual, and Auto, giving you full control over when the IR lights are active.
Q5: Is this camera compatible with Network Video Recorders (NVRs) from other brands?
A5: This camera supports ONVIF (Profile S, G, & T) for interoperability, meaning it should work with most NVRs that also support ONVIF standards. However, for full functionality and to utilize advanced AI features like AcuPick, it is recommended to pair it with a compatible Dahua AI NVR.
Q6: What makes SMD 4.0 different from older motion detection features?
A6: SMD 4.0 uses deep learning algorithms to accurately classify motion events as either human or vehicle, significantly reducing false alarms caused by non-threatening movements like animals, rain, or rustling leaves. Older motion detection systems would often trigger alarms for any movement, leading to many irrelevant notifications.
Q7: Can this camera be installed in extremely cold or hot climates?
A7: Yes, the camera has a wide operating temperature range of –40 °C to +70 °C (–40 °F to +158 °F), making it suitable for deployment in a broad range of challenging environmental conditions.
Q8: Does the camera automatically track detected objects?
A8: Yes, with its "Auto Patrol" feature, the camera can be configured to automatically trigger an IVS rule when a target is detected. It will then link with the PTZ to rotate to the target's position and continue patrolling based on its presets, providing dynamic tracking capabilities.
Comparison Table
Dahua SD49425GB-HNR vs. Dahua SD49425GN-HNP
| Category |
Dahua SD49425GB-HNR (Current Model) |
Dahua SD49425GN-HNP (Previous Model) |
| Image Sensor |
1/2.8" STARVIS™ CMOS |
1/2.8" CMOS |
| Max. Resolution |
2560 (H) × 1440 (V) (4MP) |
2560 (H) × 1440 (V) (4MP) |
| ROM |
4 GB |
256 MB |
| RAM |
1 GB |
512 MB |
| 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 |
| IR Distance |
100 m (328.08 ft) |
100 m (328.08 ft) |
| Illuminator Number |
4 (IR) |
3 (IR) |
| Optical Zoom |
25x |
25x |
| Manual Control Speed (Pan) |
0.1°–200°/s |
0.1°/s–80°/s |
| Manual Control Speed (Tilt) |
0.1°–120°/s |
0.1°/s–80°/s |
| Preset Speed (Pan) |
240°/s |
80°/s |
| Preset Speed (Tilt) |
200°/s |
80°/s |
| Intelligence |
Perimeter Protection, Face Detection, SMD 4.0, Acupick, Auto Patrol
|
Perimeter Protection, Face Detection |
| Video Compression |
H.264H; H.264B; Smart H.265+; H.264; H.265; MJPEG(Sub Stream); Smart H.264+ |
H.264; H.265; MJPEG; Smart H.264+; Smart H.265+ |
| Micro SD Card Storage |
512 GB |
256 GB |
| Alarm I/O |
2/1 |
2/1 |
| Audio I/O |
1/1 |
1/1 |
| Power Supply |
12 VDC/3 A ± 10%, PoE+ (802.3at) |
12 VDC/3 A, PoE+ (802.3at) |
| Max. Power Consumption |
20 W (Illuminator+alarm+PTZ) |
21W (IR on) |
| Operating Temperature |
–40 °C to +70 °C (–40 °F to +158 °F) |
–40 °C to +70 °C (–40 °F to +158 °F) |
| Protection |
IP66, TVS 6000 V lightning proof; surge protection; voltage transient protection |
IP66, TVS 6000 V lightning proof; surge protection; voltage transient protection |
| Product Dimensions |
270.4 mm × Φ160 mm (10.65" × Φ6.30") |
295 mm × Φ160 mm (11.61" × Φ6.30") |
| Net Weight |
2.4 kg (5.29 lb) |
3 kg (6.61 lb) |
Summary Recommendation
The Dahua SD49425GB-HNR (the current model) offers significant improvements over its predecessor, the Dahua SD49425GN-HNP, particularly in processing power and advanced AI features.
Choose the SD49425GB-HNR (current model) if you need:
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Enhanced AI Capabilities: It features SMD 4.0, Acupick, and Auto Patrol for more accurate and automated intelligent functions, including advanced Face Detection attributes and capturing strategies.
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Faster PTZ Control: Significantly higher manual and preset pan/tilt speeds allow for quicker response times and more efficient surveillance operations.
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Increased Storage and Performance: With 4GB ROM and 1GB RAM, and support for up to 512GB Micro SD cards, it offers better system performance and storage capacity.
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Improved IR Illumination: The presence of 4 IR illuminators should provide more uniform and potentially stronger night vision.
Choose the SD49425GN-HNP (previous model) if you are looking for:
- A more budget-friendly option that still provides basic 4MP PTZ functionality with Starlight technology and a 100m IR range.
- Your application does not require the latest advanced AI features or extremely fast PTZ response times.
