Dahua DHI-ARD323-W2(868S) – Wireless Door/Window Magnetic Contact, 868 MHz, up to 1,200 m Range
Compact wireless door/window magnetic contact with two-way AES-128 encrypted RF on 868 MHz, up to 1,200 m range, and up to 5 years battery life on a single CR123A cell.
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Description
The Dahua DHI-ARD323-W2(868S) is a compact wireless magnetic door/window contact for use within the Dahua AirShield alarm ecosystem. Comprising a Reed Switch sensor and a small magnet, it triggers an alarm the moment a secured door or window opens beyond 40 mm. Real-time device status and alarm event notifications are pushed directly to the DMSS app, ensuring immediate awareness at any time and from any location.
Key features
- Sensor type: Reed Switch (magnetic contact)
- Frequency: 868.0 MHz – 868.6 MHz (EU-compliant)
- Communication: two-way wireless with frequency hopping for enhanced stability
- Encryption: AES-128
- Wireless range: up to 1,200 m in open space
- Trigger distance: gap < 40 mm
- External contact input: 1-channel dry contact input (for connecting a wired detector)
- Temperature measurement: –15 °C to +65 °C (±1 °C accuracy), visible in DMSS app
- Signal strength detection: allows verification of radio link quality prior to finalising installation
- Low battery alarm: yes – advance warning sent to the hub
- Tamper alarm: yes
- Power supply: 1 × CR123A battery (up to 5 years battery life)
- Firmware update: remote cloud update with automatic recovery from update failure
- Indicator: 1 × green alarm LED
- Sensor dimensions: 100.2 mm × 20.8 mm × 20.3 mm
- Magnet dimensions (small): 37.8 mm × 13.5 mm × 14.0 mm
- Weight: 70 g (net)
- Material: polycarbonate and ABS, white finish
- Operating temperature: –10 °C to +55 °C
- Relative humidity: 10% – 90%
- Compatibility: Dahua AirShield hubs – ARC3000H-W2(868), ARC3800H-W2(868), ARC3800H-FW2(868) and other models in the range
- Suitable for: non-metallic doors and windows only
The compact form factor with a small magnet allows discreet installation even in locations where a standard-sized contact would not fit. Thanks to two-way frequency-hopping communication and AES-128 encryption, the DHI-ARD323-W2(868S) is a reliable and security-hardened solution for perimeter protection within Dahua wireless alarm systems.
