Dahua ARD821-W2(868) Wireless Panic Button

Dahua ARD821-W2(868) Wireless Panic Button

The Dahua ARD821-W2(868) is a wireless panic button designed to provide immediate emergency alarm activation within Dahua AirShield wireless security systems. With a single press, users can instantly trigger an alarm and notify designated responders, making it ideal for personal safety, medical assistance requests, and emergency security situations.

Its compact and portable design allows it to be carried as a pendant, worn on a lanyard, or mounted in a fixed location for quick access. Featuring secure two-way wireless communication, AES128 encryption, and long battery life, the panic button delivers dependable emergency signalling in residential, commercial, healthcare, and assisted-living environments.

Features:

• One-touch emergency alarm activation
• Compatible with Dahua AirShield wireless alarm systems
• Two-way wireless communication
• AES128 encrypted transmission
• Frequency hopping technology for enhanced reliability
• Portable and lightweight design
• Wearable as a pendant or lanyard
• Wall-mountable installation option
• LED status indication
• Signal strength monitoring
• Low battery notification
• Cloud firmware updates via compatible alarm hub
• Water-resistant design for everyday use

Specifications:

Product Type: Wireless Panic Button

Function: Emergency Alarm Trigger

Wireless Frequency: 868.0 MHz – 868.6 MHz

Communication Type: Two-Way RF Communication

Communication Range: Up to 1,400m (Open Space)

Encryption: AES128

Frequency Hopping: Yes

Status Indicator: LED Indicator

Battery Type: CR2032 Lithium Battery

Battery Life: Up to 5 Years

Low Battery Detection: Yes

Signal Strength Detection: Yes

Tamper Protection: Yes

Installation Options: Portable, Pendant, Wall Mount

Operating Temperature: -10°C to +55°C

Operating Humidity: Up to 95% RH (Non-Condensing)

Dimensions: Approximately 55 × 36 × 16.2mm

Weight: Approximately 25g