SKU: 46300514710

DAHUA VTA8311A Dahua Wired&Wireless Alarm Column

$403189.17 $447987.97
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Description

DAHUA VTA8311A Dahua Wired&Wireless Alarm ColumnVTA8311A > 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 management device to broadcast your voice. > Supports being linked

VTA8311A

> 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 management 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.


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

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/AAC

Volume Control

Yes

Two-way Audio

Yes

Field of View

D: 105°
H: 88°
V: 44°

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

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: 46300514710

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4.0 ★★★★★
Based on 774 reviews
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Product Reviews
K
Verified Purchase
kevin weir
Dallas, US
★★★★★ 5
This tire sealant works very well
Size: 16 oz
So far so good. Cheaper and easier that tubing a leaking tire
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
J
Verified Purchase
Jerry D
Carnegie, US
★★★★★ 3
Hard to install as instructed.
Size: 32 oz
Nearly impossible to get it in the tire through the valve. Yes I removed the valve core. Broke the bead on the tire and dumped it in. That worked great! So far no leaks. They should definitely redesign the installation method.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
B
Verified Purchase
bsync
Battle Creek, US
★★★★★ 5
Been using it for 15 years! Not sure where the Neg reviews come from?
Size: 16 oz
I've been using Liquitube since around 2010. I use it religiously in my ATVs and lawn tractor tires. Since I've been using this stuff, I've never had a flat before. I've pulled out nails and slivers of steel out of my ATV tires but yet none of them lose air or go flat. I think some of the negative reviews come from improper use of the product or not enough of the product is being used in the tires. I think this come from variance in formula charts that Liquitube has had in the past on their bottles and on their website. The chart on their website wouldn't match the formula that was provided on the bottle. So I think alot of people get mixed up and not knowing the correct amount to add to each tire. Now Liquitube just puts pictures on the side of the bottle with an ounce measurement below each picture to tell people how to use it. But even that can be confusing. For instance, take the picture of the ATV that they show. Below the ATV it says 32oz. Now some people probably think the 32oz is for the entire ATV. Well that isn't the case. They want you to use 32oz Per Tire! Years ago Liquitube even used to say on the bottle to use 32oz per tire on an ATV. Now they just show a picture with an amount below it. Now you'll come to find out that the 32oz they recommend doesn't match up to the formula they tell you to use to calculate how much each tire is supposed to get. So if you use the formula provided, you come to find that it calculates out to use less product per tire than what the bottle tells you to use. So that's very confusing as well. So if you use it long enough, you'll be able to know how much each tire will need from experience. Just make sure there's enough on the inside of the tire to coat the entire inside as well as leaving a bit left over to circulate in the tire so it can be ready for a large puncture if that ever happens. All in all, it's a good product that does what it claims. It lasts for as long as the tire does and it doesn't freeze up in the cold either! 5 stars!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
C
Verified Purchase
Christina
Lexington, US
★★★★★ 5
Worth it for peace of mind to have in car
Works as described. Have used twice now. Takes a few minutes but will put air in tire. The cord is long enough to reach every tire. Certainly loud when using car must be on to use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 5
Great true inflator
Great tire inflator also own a jumper pack in this brand, easy to use and great function to set the disired psi and auto shut off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2026

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