Description
Camera & Imaging
| Specification | Details |
|---|---|
| Model | DH-HAC-B1A21P-U-0360B |
| Camera Type | HDCVI Fixed-Focal IR Bullet Camera |
| Image Sensor | 2MP CMOS |
| Maximum Resolution | 1920 × 1080 (Full HD 1080p) |
| Scanning System | Progressive Scan |
| Frame Rate – PAL | 1080p @ 25fps |
| Electronic Shutter | 1/25s – 1/100,000s |
| Minimum Illumination – Color | 0.02 lux @ F2.0, 30 IRE |
| Minimum Illumination – B&W | 0.002 lux @ F2.0, 30 IRE |
| With IR Illuminator On | 0 lux |
| S/N Ratio | >65 dB |
| Day/Night | Auto (ICR) / Color / B&W |
Dahua’s current official B1A21-U datasheet specifies improved low-light sensitivity compared with some older B1A21 versions.
Lens Specifications
The 0360B model is equipped with a 3.6mm fixed-focal lens.
| Specification | Details |
|---|---|
| Lens Type | Fixed focal |
| Focal Length | 3.6mm |
| Lens Mount | M12 |
| Maximum Aperture | F2.0 |
| Horizontal FOV | 80° |
| Vertical FOV | 43° |
| Diagonal FOV | 94° |
| Close Focus Distance | Approx. 0.8m |
| Iris Control | Fixed |
The 3.6mm lens offers a useful balance between viewing width and subject detail, making it suitable for entrances, compounds, shops, offices, parking areas and general perimeter surveillance.
DORI Distance – 3.6mm Lens
Dahua’s official datasheet gives the following approximate DORI performance:
- Detection: 55.0 metres
- Observation: 22.0 metres
- Recognition: 11.0 metres
- Identification: approximately 5.5 metres
Night Vision & Smart IR
- Night Vision: Up to 30 metres
- Illuminator Type: Infrared (IR)
- Number of IR LEDs: 2
- Smart IR: Supported
- IR Control: Auto / Manual
- 0 Lux Operation: Yes, with IR illuminator active
Smart IR automatically helps control infrared intensity to reduce overexposure when people or objects move close to the camera at night.
Video Output & Compatibility
The camera supports multiple analog HD standards, making it suitable for both new installations and upgrades of existing coaxial CCTV systems.
- HDCVI: 1080p @ 25fps PAL
- TVI: 1080p @ 25fps PAL
- AHD: 1080p @ 25fps PAL
- CVBS: Standard-definition analog output
- Video Output: CVI / TVI / AHD / CVBS switchable
- Video Connector: 1 × BNC
- Supported Resolution: 1080p Full HD
This four-in-one output allows the camera to work with a wide range of compatible DVRs/XVRs.
Image Enhancement
- DWDR – Digital Wide Dynamic Range
- BLC – Backlight Compensation
- HLC – Highlight Compensation
- 2D Digital Noise Reduction
- Automatic White Balance
- Area White Balance
- Auto/Manual Gain Control
- Smart Illumination
- Mirror Mode
- Privacy Masking: Up to 8 rectangular areas
Camera Adjustment
The mounting bracket allows flexible positioning:
- Pan: 0°–360°
- Tilt: 0°–90°
- Rotation: 0°–360°
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