Dahua IPC-HDW3849HP-AS-PV-0280B-PRO 8MP WizSense TiOC Pro Eyeball IP Camera (Smart Dual Light, Active Deterrence, AcuPick AI)
Unless selecting a vari-focal camera (with an adjustable lens) It is important to select the correct camera lens option for where the camera is to be positioned. A smaller lens will give you a wider angle but will be "zoomed out more", while a bigger lens will narrow the angle down and "zoom in more". See below to give you some idea on angles of Megapixel HD Cameras:
| Lens in mm | Approx Viewing Angle (degrees) | Ideal Distance (metres) | Typical usage/notes |
|---|---|---|---|
| 2.8 | 106 | <6 | For seeing as much of the immediate area as possible such as above a doorway/low down/garage soffits (edges can appear slightly warped/distorted) - clearly "zoomed out" |
| 3.6/4 | 83-90 | <12 | A great general purpose option giving great coverage still in the corner of a room or higher up on second floor soffits with less distortion - more of a natural "zoom" |
| 6 | 56 | 6-20 | Narrows down the angle and zooms in to look past the immediate area a little to gain more detail - down a driveway for example from higher up |
| 12 | 24 | 20+ | Zooms in significantly more to look at a gate, entrance or adjascent building |
| 16 | 19 | 24+ | As above but more so |
The amount of hard drive space you require is dictated by how many cameras, as well as their resolution and frame rate settings. Finally you can often make your storage space last a lot longer by enabling motion detected recording rather than continuous, especially if there are long periods of no activity.
|
Resolution (Megapixels) |
Days of storage provided by 1TB per camera (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (continuous - full 25 frames per second) |
Days of storage provided by 1TB per 4 cameras (50% motion- 15 frames per second) |
|---|---|---|---|
| 1 | 44 | 11 | 36 |
| 2 | 22 | 5 | 18 |
| 3 | 17 | 4 | 14 |
| 4 | 11 | 3 | 9 |
| 5 | 9 | 2 | 8 |
| 6 | 8 | 2 | 6 |
| 8 (4K) | 5 | 1 | 4 |
| 12 | 4 | 0.5 | 3 |
As a rule of thumb we recommend a minimum of 2 Terabytes per 4 x 2-4MP HD cameras, as this should give you 2 weeks to a month with a few adjustments on motion detected recording. You may only require the full 25 frames per second on certain cameras if things are fast moving.
(All of our hard drives come fitted and are CCTV specific from one of the major brands)
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Dahua IPC-HDW3849HP-AS-PV-0280B-PRO 8MP WizSense TiOC Pro Eyeball IP Camera (Smart Dual Light, Active Deterrence, AcuPick AI)
The Dahua IPC-HDW3849HP-AS-PV-0280B-PRO is a premium 8MP eyeball IP camera from Dahua’s WizSense 3 Series and TiOC Pro lineup, designed for intelligent monitoring, full-color night surveillance, and active intrusion deterrence. It uses a 1/1.8" progressive CMOS sensor, delivering ultra-clear 4K (3840 × 2160) resolution for highly detailed video suitable for security-critical environments. This model integrates Dahua’s TiOC Pro (Three-in-One Camera) concept, combining AI detection, deterrence, and high-quality imaging in a single device. It can automatically trigger red and blue flashing lights, built-in siren audio, and voice warnings when an intrusion is detected, helping prevent incidents before they escalate. For nighttime performance, the camera uses Smart Dual Light technology, which intelligently switches between infrared illumination for discreet monitoring and warm white LED lighting for full-color video capture when motion or targets are detected. This ensures clear evidence recording even in complete darkness while reducing unnecessary light pollution.
KEY FEATURES
- 8MP (4K UHD) resolution: 3840 × 2160
- 1/1.8" progressive CMOS sensor
- Fixed 2.8mm wide-angle lens
- TiOC Pro active deterrence system
- Smart Dual Light (IR + warm white LED)
- Red & blue flashing warning lights
- Built-in siren and voice warning
- Built-in microphone & speaker
- Two-way audio communication
- WizSense AI human & vehicle detection
- SMD 4.0 smart motion detection
- AcuPick AI smart search
- Perimeter protection (intrusion & tripwire)
- Smart H.265+ / AI H.265 compression
- 120dB True WDR
- 3D noise reduction (3D NR)
- AI Scene Self-Adaptation (SSA)
- HLC, BLC, ROI functions
- MicroSD card support (up to 512GB)
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