SKU: 2634850074

DAHUA SD8A440GA-HNV 4MP 40X Ordinary IR NETWORK PTZ CAMERA

Sale price$756.00 Regular price$840.00
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Description

DAHUA SD8A440GA-HNV 4MP 40X Ordinary IR NETWORK PTZ CAMERASD8A440GA HNV > 40 optical zoom. > Starlight technology. > IR distance up to 500 m. > Auto tracking. > Perimeter protection. > Face Detection. > Metadata. > SMD. > IP67. Product Data Camera Image Sensor 1 1. 8" CMOS Pixel 4 MP Max. Resolution 2560 (H) 1440 (V) ROM 4 GB RAM 1 GB Electronic Shutter Speed 1 1 s1 30,000 s Scanning System Progressive Min. Illumination Color: 0. 001 lux@F1. 6 B W: 0. 0001 lux@F1. 6 0 lux (IR light on) Illumination Distance

SD8A440GA-HNV

> 40× optical zoom.
> Starlight technology.
> IR distance up to 500 m.
> Auto-tracking.
> Perimeter protection.
> Face Detection.
> Metadata.
> SMD.
> IP67.


Camera

Image Sensor

1/1.8" CMOS

Pixel

4 MP

Max. Resolution

2560 (H) × 1440 (V)

ROM

4 GB

RAM

1 GB

Electronic Shutter Speed

1/1 s–1/30,000 s

Scanning System

Progressive

Min. Illumination

Color: 0.001 [email protected]
B/W: 0.0001 [email protected]
0 lux (IR light on)

Illumination Distance

500 m (1,640.41 ft) (IR)

Illuminator On/Off Control

Zoom Prio; Manual; Auto; Off

Illuminator Number

10 (IR)

Wiper

Smart wiper

Lens

Focal Length

5.6 mm–223 mm

Max. Aperture

F1.6–F4.9

Field of View

H: 63.9°–2.1°; V: 37.3°–1.2°; D: 71.2°–2.4°

Optical Zoom

40×

Focus Control

Auto; semi-auto; manual

Close Focus Distance

1 m–5 m (3.28 ft–16.40 ft)

Iris Control

Auto

DORI Distance

Detect

Observe

Recognize

Identify

3,034.5 m (9,955.71 ft)

1,198.6 m (3,932.41 ft)

606.9 m (1,991.14 ft)

303.4 m (995.41 ft)

PTZ

Pan/Tilt Range

Pan: 0° to 360° endless
Tilt: –30° to +90°, auto flip 180°

Manual Control Speed

Pan: 0°/s–180°/s
Tilt: 0°/s–100°/s

Preset Speed

Pan: 0°/s–180°/s
Tilt: 0°/s–100°/s

Preset

300

Tour

8 (up to 32 presets per tour)

Pattern

5

Scan

5

Power-off Memory

Yes

Idle Motion

Preset; Pattern; Tour; Scan

PTZ Protocol

DH-SD
Pelco-P/D (Auto recognition)

Intelligence

Video Metadata

Motor vehicle, non-motor vehicle, face, and human body detection; bounding box; optimization; capturing pictures; uploading high-quality face snapshots
Motor vehicle attributes: License plate, plate color, vehicle type, vehicle color, vehicle logo, vehicle model/year, sun visor, seatbelt, smoking, calling, ornament, and annual inspection sticker.

IVS (Perimeter Protection)

Tripwire; intrusion; climbing fences; loitering detection; abandoned/missing object; fast moving; parking detection; people gathering; vehicle/human alarm classification; linkage tracking

Face Detection

Supports face detection, face bounding box, capturing snapshots, uploading face snapshots, enhancing face images, and selecting a preferred image among a group of snapshots. Attribute Extraction is also supported, where 6 attributes and 8 expressions can be detected. The attributes are gender, age, glasses, mask, mustache and expressions. The expressions are angry, sad, hate, scared, surprised, calm, happy and confused. Face cutout is also offered, where you can cutout one face at a time and customize the size to be a one-inch photo. The supported methods for capturing snapshots are real-time capturing, quality first, and selecting a preferred image among a group of snapshots.

Auto Tracking

Yes

SMD

Yes

Video

Video Compression

Smart H.265+; H.265; Smart H.264+; H.264; H.264B;

H.264H; MJPEG (Sub Stream)

Streaming Capability

3 streams

Resolution

4M (2560 × 1440); 3M (2048 × 1536); 1080p (1920 × 1080); 1.3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576/704 × 480); VGA (640 × 480); CIF (352 × 288/352 × 240)

Video Frame Rate

Main stream: 4M/3M/1080p/1.3M/720p (1–25/30 fps)
Sub stream 1: D1/VGA/CIF (1–25/30 fps)
Sub stream 2: 1080p/1.3M/720p (1–25/30 fps)

Bit Rate Control

CBR/VBR

Video Bit Rate

H264: 96 Kbps–14,848 Kbps
H265: 38 Kbps–8,960 Kbps

Day/Night

Auto (ICR)/Color/B/W

BLC

Yes

WDR

140 dB

HLC

Yes

White Balance

Auto; indoor; outdoor; tracking; manual; sodium lamp; natural light; street lamp

Gain Control

Auto; manual

Noise Reduction

2D NR; 3D NR

Motion Detection

Yes

Region of Interest (RoI)

Yes

Defog

Electronic

Digital Zoom

16×

Image Rotation

180°

Privacy Masking

Up to 24 areas can be set, with up to 8 areas in the same view;
multiple colors available

S/N Ratio

≥ 55 dB

Audio

Audio Compression

PCM; G.711a; G.711Mu; G.726; MPEG2-Layer2; G722.1; G729; G723

Network

Network Port

RJ-45 (10/100 Base-T)

Network Protocol

HTTP;HTTPS;TCP/IP;IPv4;RTSP;UDP;SMTP;NTP;DHCP;DNS;DDNS;IPv6;802.1x;SSL;Qos;FTP;UPnP;ICMP;SNMP;IGMP;ARP;RTCP;RTP;PPPoE;RTMP;Bonjour;NFS

Interoperability

ONVIF(Profile S&G&T);CGI;SDK

Streaming Method

Unicast/Multicast

User/Host

20 (total bandwidth: 64 M)

Storage

Micro SD card (512 GB); FTP/SFTP; NAS

Browser

IE 9 and later versions
Chrome 42 and later versions
Firefox 50 and later versions
Safari 10 and later versions

Mobile Client

iOS; Android

Port

RS-485

1 (baud rate: 1,200 bps–9,600 bps)

Audio Input

1 channel (LINE IN, bare wire)

Audio Output

1 channel (LINE OUT,bare wire)

Alarm Linkage

Capture; preset; tour; pattern; recording; alarm digital input; audio; send email

Alarm Event

Motion/tampering detection; audio detection; network disconnection detection; IP conflict detection; memory card status detection; memory space detection; power exception detection

Alarm I/O

7/2

Audio I/O

1/1

Power

Power Supply

36 VDC/2.23 A ± 25%; Hi-PoE

Power Consumption

Basic: 17 W
Max.: 32 W (illuminator + heater + PTZ)

Environment

Operating Temperature

–40 °C to +70 °C (–40 °F to +158 °F)

Operating Humidity

≤ 95%

Protection

IP67, TVS 8000V lightning proof; surge protection; voltage transient protection

Structure

Product Dimensions

415.9 mm × Φ262.0 mm (16.37" × Φ10.31")

Net Weight

8.5 kg (18.74 lb)

Gross Weight

13.1 kg (28.88 lb)

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: 2634850074

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4.2 ★★★★★
Based on 29 reviews
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Product Reviews
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Verified Purchase
Essell
Whiting, US
★★★★★ 5
Most comfortable office chair this fluffy guy has ever sat in.
Color: Black, Style: Classic
This chair is incredibly comfortable—easily the most comfortable one I’ve ever sat in. At around 300lbs, I’ve struggled to find a chair that’s both supportive and spacious. Most options feel tight, with the armrests pressing into my hips. Not this one. If anything, I feel small in it—there’s plenty of room on either side. It’s like going from a cramped budget airline seat to first class on a full-service carrier. The lumbar support is the best I’ve ever used. The materials are top-notch—everything from the base to the legs to the casters is metal (feels like steel). The casters themselves use what look like inline skate wheels and glide effortlessly across carpet—almost too well on hard surfaces, so you might want to consider a rug. Not a flaw, just something to keep in mind. I’ve paid twice as much for chairs that felt half as good, so in my opinion, this is an excellent value. The faux leather looks great and the stitching appears durable. While it may not last as long as real leather or high-quality fabric, it should hold up for a reasonable amount of time. Tilt functionality is basic—just two settings: upright or slightly reclined. Honestly, that’s all I need. If you’re looking for something to nap in, this might not be the chair for you. But for office work or gaming, it absolutely delivers all-day comfort. For reference, I’m 5'8", and the headrest aligns perfectly with the back of my head. If you're 6'5", it might end up being more of a neck rest. And I have to give a special shoutout to the included T-shaped hex wrench. It may sound silly, but this alone earns it a 5-star review from me. Every other chair I’ve bought includes those awful angled hex wrenches that make you slam your knuckles into the frame with every turn—often accompanied by some colorful language. Sure, I have my own tools, but finding where my wife hid them isn't always easy. A good-quality tool in the box? That’s thoughtful and appreciated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 19, 2025
M
Verified Purchase
Martin
Fort Morgan, US
★★★★★ 5
Wide and comfortable office chair
Color: Black, Style: Classic, Color: Black, Style: Classic
It's made of very fine leather and in good quality. It has a pump to pump air to the back of the chair, so I can adjust the softness of the chair back. It's a very wide chair. Maybe the widest one I ever bought. I can only sit half of its space. It's very easy to install, the alignments are perfect. Its arm and height is adjustable. The wheels are advance ones which make it move through the floor smoothly. It looks an advance chair if you want an upgraded experience.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
Z
Verified Purchase
Zhe Pang
Chelsea, US
★★★★★ 5
Excellent Comfort and Great Value for a Home Office
Color: Elegant Grey, Color: Elegant Grey
I am extremely happy with this office chair and feel it offers excellent value for the price. The chair was easy to assemble, and all the parts fit together perfectly. Once assembled, it feels sturdy, stable, and well-made. The high-back design provides outstanding support for my back, neck, and shoulders. The seat cushion is thick and comfortable, making it easy to sit for long periods while working, studying, or gaming. The padded headrest adds extra comfort, and the faux leather material looks stylish and gives the chair a premium appearance. One of my favorite features is the flip-up armrests. They are comfortable to use and make it easy to slide the chair under my desk when I need extra space. The height adjustment, smooth swivel, and rocking function all work well and allow me to find the perfect sitting position throughout the day. The chair arrived exactly as described and exceeded my expectations in both comfort and appearance. It looks great in my home office and has made long work sessions much more enjoyable. If you're looking for a comfortable, attractive, and affordable office chair, I highly recommend this product. I would definitely purchase it again and would gladly give it five stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
J
Verified Purchase
Judy
Phoenix, US
★★★★★ 5
Comfortable and Stylish Office Chair
I’ve been using this chair for my home office, and it’s been very comfortable. The high back provides good support, and the lumbar support helps reduce strain during long hours at my desk. The leather looks nice and gives the chair a professional appearance. I really like the flip-up armrests because they make it easy to slide the chair under the desk when not in use. The rocking function is a nice feature for relaxing during breaks, and the chair rolls and swivels smoothly. Overall, it’s a comfortable, well-made office chair that looks great and provides excellent support for everyday work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
S
Verified Purchase
Selena
West Palm Beach, US
★★★★★ 5
Excellent lumbar support and easy assembly
I bought this chair because of my lower back pain, and it has been very comfortable to use. The leather feels soft, and the lumbar support is excellent. Assembly was easy, and the tools included, especially the screwdriver design were very well thought out, which made the whole setup process much easier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

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