Dahua HAC-B1A21-A 2MP HDCVI Bullet Audio Camera

Camera

Image Sensor

2 MP CMOS

Max. Resolution

1920 (H) × 1080 (V)

Scanning System

Progressive

Electronic Shutter Speed

PAL: 1/25 s–1/100000 s  
NTSC: 1/30 s–1/100000 s

Min. Illumination

0.02 lux@F2.0 (Color, 30 IRE)  
0.002 lux@F2.0 (B/W, 30 IRE)  
0 lux (Illuminator on)

S/N Ratio

>65 dB

Illumination Distance

20 m (65.62 ft)

Illuminator On/Off Control

Auto

Illuminator Number

2 (IR light)

Angle Adjustment

Pan: 0°–360°  
Tilt: 0°–90°  
Rotation: 0°–360°

Lens

Lens Type

Fixed-focal

Lens Mount

M12

Focal Length

2.8 mm; 3.6 mm; 6 mm

Max. Aperture

F2.0

Field of View

2.8 mm: H: 100°; V: 54°; D: 117°  
3.6 mm: H:80°; V: 43°; D: 94°  
6 mm: H: 43°; V: 24°; D: 50°

Iris Control

Fixed

Close Focus Distance

2.8 mm: 0.5 m (1.64 ft)  
3.6 mm: 0.8 m (2.62 ft)  
6 mm: 2.8 m (9.19 ft)

DORI Distance

Lens

Detect

Observe

Recognize

Identify

2.8 mm

44.7 m  
(146.65 ft)

17.9 m  
(58.73 ft)

8.9 m  
(29.20 ft)

4.5 m  
(14.76 ft)

3.6 mm

55.0 m  
(180.45 ft)

22.0 m  
(72.18 ft)

11.0 m  
(36.09 ft)

5.5 m  
(18.04 ft)

6 mm

102.9 m  
(337.60 ft)

41.1 m  
(134.84 ft)

20.6 m  
(67.59 ft)

10.3 m  
(33.79 ft)

Video

Video Frame Rate

CVI:  
PAL: 1080p@25 fps  
NTSC: 1080p@30 fps  
AHD:  
PAL: 1080p@25 fps  
NTSC: 1080p@30 fps  
TVI:  
PAL: 1080p@25 fps  
NTSC: 1080p@30 fps  
CVBS:  
PAL: 960H;  
NTSC: 960H

Resolution

1080p (1920 × 1080); 960H (960 × 576/960 × 480)

Day/Night

Auto(ICR)/Color/B/W

BLC

BLC; DWDR

WDR

DWDR

White Balance

Auto

Gain Control

Auto

Noise Reduction

2D NR

Illumination Mode

Smart IR

Certification

Certifications

CE-LVD: EN 62368-1;  
CE-EMC: EN 55032; EN 55035;  
FCC: 47 CFR FCC Part 15, Subpart B

Port

Audio Output

Video Output

One channel built-in mic (-A)

Video output choices of CVI/TVI/AHD/CVBS by one  
BNC port

Power

Power Supply

12 VDC ± 30%

Power Consumption

Max 2.8 W (12 VDC, IR on)

Environment

Operating Temperature

–40 °C to +60 °C (–40 °F to +140 °F)

Operating Humidity

<95% (RH), non-condensing

Storage Temperature

–40 °C to +60 °C (–40 °F to +140 °F)

Storage Humidity

<95% (RH), non-condensing

Protection

IP67

Anti-corrosion Level

Basic Protection

Structure

Casing Material

Plastic

Product Dimensions

149.3 mm × 69.8 mm × 69.8 mm (5.88" × 2.75" × 2.75")

Net Weight

0.14 kg (0.31 lb)

Gross Weight

0.22 kg (0.49 lb)

Installation

Wall mount; ceiling mount; vertical pole mount