The DH-ECA3A1404-HNR-XB is an advanced 4MP explosion-proof IR network camera designed for high-risk environments where safety and precision are crucial. Built with Dahua’s WizMind AI technology, this camera supports perimeter protection, face detection, and smart capture.
Key Features
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Explosion-Proof Design: Certified to ATEX and IECEx standards, this camera is built to operate safely in explosive environments, providing reliable security for high-risk areas like factories and refineries.
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4x Optical Zoom & 16x Digital Zoom: Flexibility to zoom in on distant subjects while maintaining high image clarity, allowing for precise monitoring across large areas.
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Starlight Technology: Provides exceptional low-light performance with color detail down to 0.001 Lux, ensuring clear images even in total darkness.
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SMD Plus AI: Utilizes deep learning algorithms to accurately filter false alarms from non-concerned targets, ensuring only human and vehicle intrusions trigger alerts.
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40m IR Range: The built-in IR illuminators provide clear visibility in dark environments, with up to 40 meters of range.
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Wide Dynamic Range (120 dB): Captures high-quality images in scenes with intense light contrast, ensuring that both bright and dark areas are clearly visible.
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Smart H.265+ Video Compression: Reduces bandwidth and storage needs by up to 70%, ensuring efficient video streaming without compromising quality.
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Two-Way Audio: Enables audio input and output, allowing for communication in real-time, making it perfect for remote monitoring and alerts.

Perfect For:
- Oil & Gas Facilities
- Chemical Plants
- Industrial Sites
- Border Patrol Stations
- Urban Infrastructure
Install Tips
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Mounting Height: Ensure the camera is mounted at least 3 meters (10 feet) above the ground for optimal coverage and to prevent tampering.
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Power Supply: Use PoE for easy installation and power supply over the network. If not available, use the included 12V DC power adapter.
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Lens Adjustment: If the camera is installed in a large area, use the 4x optical zoom to zoom in on important areas, and adjust focus accordingly.
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IR Lighting: Make sure the IR illuminators are properly adjusted for the environment. For wide-area coverage, enable SmartIR mode.
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Weatherproofing: The IP68 rating ensures weather resistance. However, make sure to install the camera in a sheltered spot to avoid direct exposure to elements like heavy rain.
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Testing: Use the camera’s built-in test features (motion detection, perimeter protection) to verify functionality during setup.
Downloads
Quick-Read Specs Card
| Feature |
Specification |
| Resolution |
4MP (2560 x 1440) |
| Lens Options |
2.8mm–12mm, 4x Optical Zoom |
| Night Vision Type |
IR, 40m (131.23 ft) |
| Deterrence |
No (Audio capabilities, but no built-in siren) |
| AI Features |
SMD Plus, Smart Capture, Face Detection, Perimeter Protection |
| Audio |
Two-Way Audio |
| Storage |
MicroSD (256GB max), FTP, NAS |
| Power |
12VDC / PoE |
| Weather Rating |
IP68 |
Extra Info
PFA+ Technology
PFA (Predictive Focus Algorithm) Plus is an advanced feature that ensures sharp, consistent focus across a range of zoom levels. As the camera zooms in or out, PFA+ technology continuously adjusts the focus, compensating for the changing focal length in real-time. This ensures:
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Uncompromised clarity at both wide and zoomed-in focal lengths, even during dynamic monitoring scenarios.
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Quick, precise focus transitions during tracking or scene changes, particularly useful when monitoring large areas or following moving targets.
This feature is invaluable for applications requiring high-definition close-up details, such as license plate recognition, facial recognition, or identifying small objects at a distance.
Perimeter Protection
The camera’s perimeter protection feature significantly enhances security by using advanced motion detection algorithms to filter out irrelevant movements, such as:
- Animals
- Wind-blown objects
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Changes in lighting or shadows
This reduces false alarms and ensures that the system is only triggered by real human or vehicle activity. The result is a highly reliable and efficient perimeter security system, minimizing unnecessary notifications and focusing attention on genuine threats. This is especially effective in environments like fenced perimeters, parking lots, or wide outdoor areas.
Starlight Technology
Leveraging Starlight Ultra-low Light Technology, this camera ensures vibrant, full-color video even in low-light conditions, down to 0.001 lux—a level that is virtually pitch black to the naked eye. Starlight technology uses advanced image sensors and processing algorithms to:
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Enhance color accuracy in extremely dark environments, which is crucial for capturing important details like clothing colors, vehicle identification, and facial features in the dark.
- Provide clear, usable footage for 24/7 surveillance, particularly in locations with minimal ambient lighting, such as parking garages, perimeter fences, or underlit outdoor spaces.
This makes the camera ideal for critical surveillance areas where continuous, high-quality nighttime imaging is required.
SMD Plus AI
SMD Plus (Smart Motion Detection) technology combines artificial intelligence (AI) with motion detection to significantly improve the accuracy of alerts. This innovative system:
- Filters out motion from irrelevant objects such as trees, bushes, or flying debris.
- Focuses on human and vehicle recognition, delivering more precise alerts only when a legitimate threat is detected.
By leveraging AI-powered object classification, SMD Plus enhances detection in busy or dynamic environments and is particularly effective in:
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Wide-open areas where natural motion might otherwise trigger false alarms.
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Urban and suburban environments, where movement is often caused by environmental factors rather than human or vehicle presence.
This makes the camera ideal for environments with high levels of ambient motion and where false positives need to be minimized.
True WDR (120 dB)
The camera’s True Wide Dynamic Range (WDR) technology provides exceptional detail in both bright and dark areas of a scene. With a wide dynamic range of 120 dB, it ensures that:
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Bright, overexposed areas and dark, underexposed areas are both clearly visible.
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High-contrast scenes (e.g., sunlight streaming through a window or headlights at night) are correctly balanced, allowing for accurate identification and surveillance.
This feature is particularly useful in:
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Entrance areas where sunlight can cause glare.
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High-traffic intersections or street monitoring, where night-time lighting may create stark contrasts in the image.
With True WDR, the camera can provide more comprehensive surveillance coverage in environments where lighting conditions vary significantly within the same scene.
While the DH-ECA3A1404-HNR-XB does not feature built-in AcuPick, it supports AcuPick search functions when connected to an AI-capable Dahua NVR. The camera sends AI metadata (e.g., face detection, people counting, perimeter classifications) that the NVR uses for smart filtering and playback search.
Benefits via AI NVR Integration:
- Search by human or vehicle presence
- Filter playback using traits like mask, gender, or clothing
- Skip irrelevant footage and jump to key events instantly
- Use AI-driven logs and smart snapshots from camera metadata
Q&A
Can this camera record in color at night?
Yes, thanks to Dahua's Starlight technology, the camera captures full-color images even in low-light environments.
How loud is the speaker for two-way audio?
The speaker volume can be controlled via the camera settings. It’s ideal for clear communication in a variety of environments, but it does not support high-decibel siren alarms.
Can the IR lights be disabled?
Yes, the IR illuminators can be manually turned off or set to SmartIR mode, which adjusts the lighting based on the scene.
Does it support ONVIF for third-party NVRs?
Yes, this camera is ONVIF-compliant and can be integrated with third-party NVRs for broader surveillance setups.
How long will the SD card recording last?
The camera supports up to 256GB of microSD storage. The exact duration depends on the recording settings (resolution, frame rate, etc.), but typically, it can store several days to weeks of footage.
What makes this different from the PRO version?
The PRO version offers more advanced features like integrated deterrence (flashing lights, siren) for active deterrence, while this version focuses more on surveillance in hazardous environments without built-in deterrence features.
Will the camera automatically trigger alarms?
Yes, the camera can trigger alarms based on motion detection, face detection, and perimeter protection features. It sends alerts for specific events such as vehicle or human intrusion.
What is the IP68 rating?
The camera is rated IP68, meaning it’s fully weatherproof and can withstand harsh environmental conditions, including heavy rain, dust, and snow.