SKU: 90745619678

DAHUA HAC-B1A21 2MP HDCVI IR Bullet Camera

Sale price$19.80 Regular price$22.00
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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7

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Description

DAHUA HAC-B1A21 2MP HDCVI IR Bullet CameraHAC B1A21 > Max. 30 fps@1080p > CVI CVBS AHD TVI switchable > 3. 6 mm fixed lens (2. 8 mm, 6 mm optional) > Max. IR length 20 m, Smart IR > IP67,12 VDC Product Data Camera Pixel 2 MP Image Sensor 2MP CMOS Max. Resolution 1920 (H) 1080 (V) Scanning System Progressive Electronic Shutter Speed PAL: 1 25 s1 100,000 s NTSC: 1 30 s1 100,000 s Min. Illumination 0. 04 lux@F2. 0 (Color, 30 IRE) 0. 004 lux@F2. 0 (B W, 30 IRE) 0 lux (Illuminator on) S N Ratio

HAC-B1A21

> Max. 30 fps@1080p

> CVI/CVBS/AHD/TVI switchable

> 3.6 mm fixed lens (2.8 mm, 6 mm optional)

> Max. IR length 20 m, Smart IR

> IP67,12 VDC

Product Data

Camera

Pixel

2 MP

Image Sensor

2MP CMOS

Max. Resolution

1920 (H) × 1080 (V)

Scanning System

Progressive

Electronic Shutter Speed

PAL: 1/25 s–1/100,000 s
NTSC: 1/30 s–1/100,000 s

Min. Illumination

0.04 [email protected] (Color, 30 IRE)
0.004 [email protected] (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/Manual

Illuminator Number

2 (IR light)

Pan/Tilt/Rotation Range

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: 53°; D: 120°
3.6 mm: H: 82°; V: 42°; D: 98°

6 mm: H: 53°; V: 30°; D: 60°

Iris Control

Fixed

Close Focus Distance

2.8 mm: 0.6 m (1.97 ft)

3.6 mm: 1.0 m (3.28 ft)

6 mm: 2.0 m (6.56 ft)

DORI Distance

Lens

Detect

Observe

Recognize

Identify

2.8 mm

46.9 m

(153.87 ft)

18.8 m

(61.68 ft)

9.4 m

(30.84 ft)

4.7 m

(15.42 ft)

3.6 mm

60.9 m

(199.80 ft)

24.3 m

(79.72 ft)

12.2 m

(40.03 ft)

6.1 m

(20.01 ft)

6 mm

82.8 m

(271.65 ft)

33.1 m

(108.60 ft)

16.6 m

(54.46 ft)

8.3 m

(27.23 ft)

Video

Video Frame Rate

CVI:
PAL: 1080p@25 fps; 720p@25 fps
NTSC: 1080p@30 fps; 720p@30 fps
TVI:
PAL: 1080p@25 fps; 720p@25 fps
NTSC: 1080p@30 fps; 720p@30 fps
AHD:
PAL: 1080p@25 fps; 720p@25 fps
NTSC: 1080p@30 fps; 720p@30 fps
CVBS:
PAL: 960H
NTSC: 960H

Resolution

1080p (1920 × 1080); 720p (1280 × 720); 960H (960 × 576/960 × 480)

Day/Night

Auto (ICR)/Color/B/W

BLC

BLC; HLC; DWDR

WDR

DWDR

White Balance

Auto; Area white balance

Gain Control

Auto/Manual

Noise Reduction

2D NR

Smart Illumination

Yes

Mirror

Yes

Privacy Masking

Off/On (8 areas, rectangle)

Certification

Certifications

CE (EN55032:2015, EN61000-3-2:2014, EN61000-3-3:2013, EN55024:2010+A1:2015, EN55035:2017, EN50130-4:2011+A1:2014, EN62368-1:2014+A11:2017)
FCC (CFR 47 FCC Part 15 subpartB, ANSI C63.4-2014)

Port

Video Output

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

Power

Power Supply

12 VDC ± 30%

Power Consumption

Max. 2.7 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)

Protection

IP67

Structure

Casing

Plastic

Product Dimensions

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

Packaging Dimensions

164 mm × 79 mm × 90 mm (6.46" × 3.11" × 3.54")

Net Weight

0.14 kg (0.31 lb)

Gross Weight

0.17 kg (0.37 lb)

Installation

Wall mount; ceiling mount; horizontal pole mount

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90745619678

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4.4 ★★★★★
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Patti J Fredley
Port Orchard, US
★★★★★ 5
Socks
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
So cute
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
G
Verified Purchase
Glass
Grantham, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
L
Verified Purchase
Lauren
Natrona Heights, US
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2025
E
Verified Purchase
Elliz
Natrona Heights, US
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again. I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers. With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands. They shift. They lose their shape. They get holes in them and wear out too fast. Not these. I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ...... I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach. The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new. Like I said - I am back to buy them again. Great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2021
J
Verified Purchase
Judy Fletcher
San Leandro, US
★★★★★ 5
No slip low socks
Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
Perfect! ❤️ these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026

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