SKU: 3897831627

DAHUA ARD821-W2(868) Wireless Panic Button

Sale price$450000.00 Regular price$500000.00
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Shipping Estimate
USA
  • USA
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

DAHUA ARD821-W2(868) Wireless Panic ButtonARD821 W2(868) 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(868)

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

868.0 MHz–868.6 MHz

Communication Distance

Up to 1,400 m (4,593.18 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: 3897831627

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4.4 ★★★★★
Based on 10 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Must have
Set name: Variety Pack Pack of 6
Good and tasty stuff. Will order again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
Jud
Fort Morgan, US
★★★★★ 4
Jerky
Set name: Variety Pack Pack of 3
It’s tasty but I prefer more spice. It’s dry not wet which I prefer. A little pricey.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
J
Verified Purchase
Jessica
Birmingham, US
★★★★★ 5
Im a believer!
Set name: Variety Pack Pack of 3
These biltongs are soft and flavorful. So hard to put the bag down! Buying another package asap!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
J
Verified Purchase
jonathan
Cuba, US
★★★★★ 5
They’re expensive, but they’re actually really good
Set name: Variety Pack Pack of 6
Honestly, these are expensive. So if you’re not picky or you don’t really care about your beef jerky, then you don’t really need this one. But if your pallet desires the finer beef jerky in life, and this is the way to go. I took a risk with it and I’m glad I did otherwise I would never have experienced this delicious taste before. I can’t describe it to you, just buy it and eat it and you’ll understand, but only if you really care what your beef jerky taste like, if you can’t tell the difference between amazing jerky and awful jerky and don’t worry about it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
T
Verified Purchase
Toby G. Boy
Natrona Heights, US
★★★★★ 3
mmmm wish it was more better
Set name: Variety Pack Pack of 6
needs more flavor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026

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