Dahua · ARD821-W2(868) · Wireless Panic Button · 868MHz
Panic Button
Dahua DHI-ARD821-W2(868) Wireless Panic Button
The Dahua ARD821-W2(868) is a compact single-button wireless panic button for fast, discreet emergency activation. A single press sends an encrypted AES128 two-way RF signal on the 868MHz band to your alarm panel, with no wiring required. It pairs with Dahua wireless alarm hubs (ARC series) and is managed in the DMSS app, making it ideal for homes, retail counters, reception desks, clinics and aged-care facilities.
Specifications — ARD821-W2(868)
| Type |
Single-button wireless panic button |
| Buttons |
1 (with LED indicator) |
| Frequency |
868.0MHz–868.6MHz |
| Communication |
Two-way RF, frequency hopping, AES128 encryption |
| Range |
Up to 1,200m in open space |
| Protection Rating |
IP54 (dust and light splash) |
| Battery |
Low-battery detection, level shown in app |
| Compatibility |
Dahua ARC wireless alarm hubs · DMSS app |
| Warranty (Australia) |
3 years · CCTV Guru Australia |
