Dahua IPC-HFW2439S-SA-LED is the most popular Full-Color workhorse camera in the 4MP segment — a direct competitor to Hikvision DS-2CD2047G2-L ColorVu but 8-12% lower in price. The camera integrates SMD Plus (Smart Motion Detection) for accurate human/vehicle detection, reducing false alarms by 90% compared to standard motion detection.
With a 1/2.7" sensor and F1.0 aperture, the camera maintains color at night thanks to a 3000K warm light LED — suitable for monitoring stores, parking lots, and areas requiring color recognition (shirt color, vehicle color) in the dark. The camera supports two-way audio (mic/speaker version) for intrusion alerts or customer guidance.
The camera is compatible with DSS Pro VMS and NVR Dahua for centralized management. We deploy this model for mid-range retail chains (Pharmacity, Bách Hóa Xanh) and FDI factories needing an optimized budget with nighttime color imaging.
Compared to Hikvision ColorVu in the same segment, Dahua has advantages in lower price and free SMD Plus (Hikvision charges a license fee for AcuSense). The downside is slightly inferior nighttime image quality (more noise) and a less diverse accessory ecosystem.
| Cảm biến | 1/2.7" CMOS Progressive Scan |
|---|---|
| Độ phân giải | 4MP (2688×1520) |
| Khẩu độ | F1.0 |
| Ống kính | 2.8mm/3.6mm cố định |
| Tầm chiếu sáng LED | 30m (warm light 3000K) |
| WDR | 120dB Digital WDR |
| AI Functions | SMD Plus (Smart Motion Detection), Human & Vehicle Classification |
| Nén video | H.265+/H.265/H.264+/H.264 |
| Bitrate | Tối đa 6144 Kbps |
| Nguồn | PoE (802.3af), DC 12V |
| Chống nước | IP67 |
| Nhiệt độ hoạt động | -30°C ~ +60°C |
- A retail chain needs to monitor night-time colors with an optimized budget.
- Residential parking lots need to recognize vehicle color and license plates in the dark.
- Small and medium-sized factories need perimeter monitoring with person/vehicle detection.
- A residential area needs a camera with two-way audio to alert against intrusions.
- Retrofit project upgrading from analog cameras to IP Full-Color with a limited budget.
Câu hỏi thường gặp
- What is the difference between SMD Plus and conventional motion detection?
SMD Plus uses AI to classify people/vehicles at the camera chip, reducing 90% of false alerts from animals, tree shadows, rain, and wind. Conventional motion detection only detects pixel changes, so it is prone to false alarms.
- Does the camera need to have its LED light continuously on?
No. The LED light can be turned on according to a schedule or motion sensor. If the LED light is turned off, the camera automatically switches to black-and-white IR mode. It is recommended to keep the LED on continuously if color is needed 24/7.
- Can it be integrated with the existing alarm system?
Yes, via alarm I/O or ONVIF Event. The camera supports 1 input and 1 output for connecting PIR sensors, alarm sirens, or warning lights.