Dahua Technology

Dahua Panic Button ARD821-W2

Rs. 1,600.00

~~Rs. 1,920.00~~ Rs. 1,600.00

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Overview

The Dahua ARD821-W2 Wireless Panic Button is an intuitive emergency trigger device designed to instantly send alarm notifications during emergency situations. It can be used for personal safety, medical assistance requests, intrusion alarms, fire alerts, gas leakage notifications, and other emergency scenarios.

Featuring two-way RF communication, AES128 encryption, frequency hopping technology, and accidental press prevention, the panic button provides secure and dependable operation. The compact and lightweight design allows it to be carried conveniently or mounted on a wall for quick access.

Key Features

✔ One-touch emergency alarm activation

✔ Suitable for intrusion, medical, fire and emergency alerts

✔ Two-way wireless communication

✔ AES128 encryption for secure transmission

✔ Frequency hopping technology

✔ Multiple LED colors indicate various statuses

✔ Accidental press prevention design

✔ Signal strength detection

✔ Battery level display through the mobile application

✔ Cloud firmware update with automatic recovery

✔ Low battery detection

✔ IP54-rated protection

✔ Battery life up to 3 years

Why Choose Dahua ARD821-W2?

Instant Emergency Response

A single button press immediately triggers an alarm event, helping users quickly request assistance in emergencies.

Portable and Flexible

Its compact design allows the device to be carried easily or mounted on a wall for convenient access.

Secure Wireless Communication

AES128 encryption and frequency hopping technology ensure reliable and protected communication with the alarm hub.

Enhanced Safety

The accidental press prevention design minimizes unwanted activations while ensuring quick operation when needed.

Long Battery Life

The built-in CR2032 battery provides up to three years of operation when used twice per week.

Technical Specifications

Feature	Specification
Product Type	Wireless Panic Button
Button	1 Emergency Button
Indicator Light	1 LED with Multiple Status Indications
Signal Strength Detection	Supported
Battery Level Display	Displayed in Mobile App
Low Battery Detection	Supported
Remote Upgrade	Cloud Update
Test Mode	Supported
Communication Mechanism	Two-Way Wireless Communication
Encryption Mode	AES128
Frequency Hopping	Supported
Wireless Frequency	868.0 MHz – 868.6 MHz
Transmission Distance	Up to 1,200 m (Open Area)
Power Supply	1 × CR2032 Battery
Battery Life	Up to 3 Years (Used Twice Per Week)
Operating Current	28 mA
Operating Temperature	-10°C to +55°C
Operating Humidity	10%–90% RH
Protection Rating	IP54
Installation	Portable or Wall Mount
Casing Material	PC + ABS
Dimensions	55 × 36 × 14.2 mm
Net Weight	18 g
Gross Weight	48 g
Certifications	CE, EN 50131 Grade 2, Environmental Class II