DHI Panic Key ARD821

ARD821-W2(868) is a wireless panic button from Dahua intended to complement alarm systems built around Dahua's wireless hubs. With a single press, the user can quickly trigger an emergency or panic alarm in an acute situation, such as during a burglary, assault, or other emergency.

The button is designed with protection against accidental activation, reducing the risk of false alarms during everyday handling. It can be wall-mounted or carried as a portable device, offering flexibility depending on where protection is most needed in the home or business. Thanks to two-way communication and frequency hopping, the button communicates stably and interference-free with the hub, with a range of up to 1,200 meters in open areas.

The device is powered by a CR2032 battery with a battery life of up to 3 years (with use twice a week), and automatically warns of low battery levels, with the battery level visible directly in the app. With IP54 protection class, the button can withstand some exposure to dust and water splashes. With EN 50131 Grade 2 certification, the ARD821-W2(868) is well-suited for both private homes and professional alarm installations.

Key Features

• Protection against accidental activation
• Can be wall-mounted or carried as a portable device
• Battery level displayed directly in the app
• Frequency hopping and two-way communication for stable wireless connection
• Cloud update
• Test mode for easy installation check
• IP54 protection class
• Low battery warning

Technical Specifications