DAHUA ARD821-W2 Wireless Panic Button
SKU: 22736993415

DAHUA ARD821-W2 Wireless Panic Button

Sale price$450000.00 Regular price$500000.00
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

DAHUA ARD821-W2 Wireless Panic ButtonARD821 W2 Wireless Panic Button > Two way RF communication. > Provides multiple LED colors to indicate different statuses. > Cloud update and automatic recovery from update failure. > Offers accidental press prevention. > Battery life up to 5 years if used twice a week. > IP54 rated. Product Data Function Indicator Light 1 for multiple statuses (pairing, communication, and more) Remote Update Cloud update Button 1 Signal Strength Yes Low Battery

ARD821-W2

Wireless Panic Button

> Two-way RF communication.
> Provides multiple LED colors to indicate different statuses.
> Cloud update and automatic recovery from update failure.
> Offers accidental press prevention.
> Battery life up to 5 years if used twice a week.
> IP54 rated.



Product Data

Function

Indicator Light

1 for multiple statuses (pairing, communication, and more)

Remote Update

Cloud update

Button

1

Signal Strength

Yes

Low Battery Detection

Yes

Battery Level Display

Displays battery level on app

Wireless

Carrier Frequency

433.1 MHz–434.6 MHz

Communication Distance

Up to 1,300 m (4,265.09 ft) in an open space

Communication Mechanism

Two–way

Encryption Mode

AES128

Frequency Hopping

Yes

General

Operating Temperature

–10 °C to +55 °C (+14 °F to +131 °F) (indoor)

Operating Humidity

10%–90% (RH)

Battery Model

CR2032

Battery Life

3 years (if used twice a week)

Product Dimensions

55 mm × 36 mm × 14.2 mm (2.17" × 1.42" × 0.56") (L × W × H)

Packaging Dimensions

95 mm × 59.5 mm × 30.5 mm (3.74" × 2.34" × 1.20") (L × W × H)

Installation

Wall mount; portable

Net Weight

18 g (0.04 lb)

Gross Weight

48 g (0.11 lb)

Certifications

CE

Casing Material

PC + ABS

Protection

IP54

Technical

Operating Current

28 mA

Test Mode

Yes

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: 22736993415

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4.6 ★★★★★
Based on 2057 reviews
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Product Reviews
K
Verified Purchase
Ken01
Phoenix, US
★★★★★ 5
Holds stuff nicely - classic addition for the bureau!
Color: Brown, Size: 10.2" x 8.4" x 1.8"
Ordered this as a gift for my son, who always seems to have a small pile of "stuff" accumulating on his bureau. He is not a fan of leather, so this tray was perfect! And it was a great value for the price. Ordered it in brown. It has a nice feel to it and (color-wise has a rich tone). Perfect for his keys, spare change he finds in his pockets, extra watchbands, whatever. Makes a great gift! I definitely recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2022
L
Verified Purchase
lmrod
Battle Creek, US
★★★★★ 5
Nice design
Color: Dark Grey Shagreen, Size: 10.2" x 8.4" x 1.8"
The design is nice and doesn’t take up too much space, but it holds a lot more than I expected. The materials feel sturdy and quality, and it looks great. It's made it so much easier to stay organized with our keys and wallets.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
K
Verified Purchase
Kyle M
Lake Worth, US
★★★★★ 5
Luxury Organization
Color: Pebble Black, Size: 9.5in x 7.9in
Keep your keys, wallet, and all other every day carry items in one, high quality location. Very nice material and build quality that accessorizes my dresser perfectly. The size is appropriate for everything that belongs in your pockets. Overall the best value for your $ I’ve seen, especially if you can catch a discount.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
D
Verified Purchase
Daniel Fuller
Waukegan, US
★★★★★ 5
Good quality, good looking
Color: Sand Brown, Size: 9.5in x 7.9in
High quality build and nice-looking. Perfect for my guest room, where people leave wallets and keys and chapstick and sunglasses and whatnot. Love it
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Reviewed in the United States on February 13, 2026
A
Verified Purchase
amiller
Battle Creek, US
★★★★★ 5
Very nice! Great gift!
Color: Pebble Black, Size: 9.5in x 7.9in
The photos don’t do this item justice. This is very high-quality construction and great look. My son loved it. I will order more for gifts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026

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