DAHUA VTA8311AB-4 Dahua Wired&Wireless Alarm Column
SKU: 21254644420

DAHUA VTA8311AB-4 Dahua Wired&Wireless Alarm Column

$450000.00 $500000.00
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

DAHUA VTA8311AB-4 Dahua Wired&Wireless Alarm ColumnVTA8311AB 4 > With its 2 MP high definition camera, the device supports video and snapshot linkage, and OSD overlay on the webpage. > 30 W speakers and highly sensitive microphones are included. > The 2 RJ 45 10 100 Mbps self adaptive Ethernet ports allow alarms to be reported to 2 alarm receiving centers at the same time. > Supports two way voice talk and calling through the platform or man agement device to broadcast your voice. > Supports being

VTA8311AB-4

> With its 2-MP high-definition camera, the device supports video and snapshot linkage, and OSD overlay on the webpage.

> 30 W speakers and highly sensitive microphones are included.

> The 2 RJ-45 10/100 Mbps self-adaptive Ethernet ports allow alarms to be reported to 2 alarm receiving centers at the same time.

> Supports two-way voice talk and calling through the platform or man agement device to broadcast your voice.

> Supports being linked to alarm receiving centers. Similar to a landline telephone, the included PSTN module allows phone calls to be made.

> Supports accessing PTZ cameras, bullet cameras, and LEDs.

> Built with an LCD that can play advertisements and provide guidance information.


Product Data

 

 

Port

Alarm Input

2

Alarm Output

2

Network Port

2 × RJ–45 10/100 Mbps self-adaptive Ethernet port

Telephone Line

1 × PSTN

SIM Card Slot

Yes (4G is optional)

RS-232

1

RS-485

1 (supports accessing a dot-matrix display)

Auxiliary Power Output

1 × 12 V/1 A

Screen

10.1" LCD–1280 × 800–5.38 W–LVDS port

SD Card Slot

1 × Micro SD card slot (maximum 256 GB)

Video & Audio

Video Compression

H.264/H.265

Audio Input

Supports 1 audio input channel with a maximum pickup distance of 5.0 m (16.40 ft)
Supports accessing an external pickup.

Audio Output

Supports 1 audio output channel with a maximum power of 30 W
Supports accessing an active speaker.

Audio Compression

G.711a/G.711U/PCM/G.726

Volume Control

Yes

Two-way Audio

Yes

Field of View

D: 105°
H: 88°
V: 44°

Image Type

Supports importing images in PNG, JPG, and BMP formats for advertisements

Video Type

Supports importing videos in AVI., DAV, and MP4 formats for advertisements

Resolution

704 × 480; 640 × 480; 1280 × 720; 1920 × 1080

Frame Rate

1–25 fps

Illumination Mode

IR illumination

Illumination Range

30 m (98.43 ft)

Day/Night Switch

Yes

Day/Night Switch

Yes

Function

Indicator Light

2 function indicators (alarm and alarm button)

Button

1 × alarm button

External Accessories

Vertical pole

Phone Call

Yes

Video Linkage

Yes

Camera Video and Snapshot Linkage

Yes

OSD Overlay

Up to 5 lines can be added with 60 English letters in each line on webpage

Arm and Disarm

Arming/Disarming on webpage

Remote Update

Yes

Network Protocol

DHCP; UPNP; NTP

FTP Server

Yes

Tamper

2-channel door detector tamper alarm

Logs

Stores up to 10,000 logs, including alarm events and operation logs

Search for Remote Alarm Event

Yes

General

Language

English

Power Supply

110–240 VAC

Power Consumption

Idling: 20 W (without speakers)
Full load: 55 W

Operating Temperature

–30 °C to +65 °C (–22 °F to +149 °F)

Operating Humidity

93% & +40 °C (+104 °F)

Product Dimensions

2,410 mm × 340 mm × 330 mm (94.88" × 13.38" × 12.99")

Packaging Dimensions

2,667 mm × 615 mm × 715 mm (105.00" × 24.21" × 28.15")

Net Weight

95 kg (209.44 lb)

Gross Weight

110 kg (242.51 lb)

Installation

footing cage mount

Casing Material

Galvanized plate

Protection

IPX5
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: 21254644420

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4.5 ★★★★★
Based on 1958 reviews
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Product Reviews
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Verified Purchase
Jake Hyatt
Bozeman, US
★★★★★ 1
You get what you pay for
Size: XX-Large, Color: Eggshell White Black Mariner Stripe
Like most of the other reviews here, the shirt runs too small and too short. Material was also incredibly uncomfortable. It also wasn't the color I was hoping it would be, but that's on me for not reading the fine print (eggshell white was very much not white) If you're looking at this for a certain costume/cosplay idea, it's probably not what you're looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
T
Verified Purchase
Terrorgod
Fort Morgan, US
★★★★★ 5
Solid fit
Size: X-Large, Color: Eggshell White Black Mariner Stripe
Easy fit, comfortable material. Dont expect it to last forever but at the price its solid for the purpose of a halloween costume.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 1, 2025
C
Verified Purchase
C.L.
Omaha, US
★★★★★ 3
Runs small
Size: X-Large, Color: Navy
Runs small and is short. Nice dark navy color. I ordered a size up and it is still small.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
D
Verified Purchase
Dee
Omaha, US
★★★★★ 5
Great tee
Size: X-Large, Color: Medium Grey Heather
It’s a nice cotton material…not thin, just perfect. After washing, it also kept its shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
M
Verified Purchase
MRH
New York, US
★★★★★ 5
Very well made Oxford casual shirts.
Size: X-Large, Color: Sky Blue
I've ordered 8 of these Button-down collared, long sleeved Oxford shirts in eight different colors. I'm 6', weigh 195. And have a 44" chest and fairly broad shoulders. The XL give me ample room, plenty of shirt tail to tuck in. And are well made. The shirts have a nice soft feeling to them. If you wash them with like items, and dry them likewise, taking them out before the cycle ends and hanging them. You won't have a single wrinkle. The shirts are true to color, and true to size if you follow the size guideline. These are not tailor fit, but regular fit shirts. Fabric quality seems very durable and well made. There is no smell when receiving the shirts. No more so than buying a shirt at a retail store. They do come in a vacuum bag. The shirts are a little heavier than a poplin shirt and can be worn year-round. These are great casual shirts for jeans and a sport coat, or slacks. I like the quality and the colors. I also like the thickness of the shirts. All of the shirts I've bought, black, blue, etc, have white buttons. Which makes them more of a casual shirt. But well worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025

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