Dahua Wireless Alarm Accessory
One Press. Instant Alert.
The Dahua ARD821-W2(868) is a compact wireless panic button designed for fast emergency activation. Compatible with Dahua wireless alarm systems, it delivers encrypted two-way RF communication with no wiring required — making it a practical addition to any home, office, or commercial site.
1,200m Range
Up to 1,200 metres in open space for reliable wireless alarm coverage.
AES128 Encrypted
Encrypted two-way RF communication helps protect every alarm signal.
Two-Way RF
Bidirectional communication confirms the alarm panel received the signal.
Ideal Applications
The ARD821-W2(868) suits homes, apartments, retail counters, reception desks, offices, clinics and aged care facilities where fast, discreet emergency signalling is needed without wired installation.
Technical Specifications
| Model |
ARD821-W2(868) |
| Product Type |
Wireless Panic Button |
| Buttons |
1 |
| Indicator Light |
1 LED indicator |
| Carrier Frequency |
868.0 MHz – 868.6 MHz |
| Communication Distance |
Up to 1,200 m in open space |
| Communication Type |
Two-way RF |
| Encryption |
AES128 |
| Frequency Hopping |
Yes |
| Low Battery Detection |
Yes |
| Battery Level Display |
Via app |
| Protection Rating |
IP54 |
| Remote Update |
Cloud update supported |
Downloads
Frequently Asked Questions
What alarm systems is this compatible with?
The ARD821-W2(868) is designed for compatible Dahua wireless alarm systems. Contact us before purchasing if you need compatibility confirmed for your specific panel.
How far can the signal reach?
Dahua rates it at up to 1,200 metres in open space. Actual range through walls and floors will vary based on building materials and layout.
How do I monitor the battery?
Battery level is visible in the Dahua app. The device also triggers a low battery alert automatically.
Can it be used outdoors?
Yes. The IP54 rating covers dust and light splashing, making it suitable for covered outdoor areas and garages.
Ready to Add Emergency Coverage?
In stock and ships fast across Australia. Add it to your Dahua alarm system today.
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