Dahua DHI-ARA12-W2(868) – Wireless Indoor Siren, 868 MHz, ≥105 dB, AES128
Dahua AirShield wireless indoor siren for 868 MHz alarm systems; sound pressure ≥105 dB, range up to 1,000 m, powered by 2× CR123A batteries with up to 2.5-year battery life.
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Description
The Dahua DHI-ARA12-W2(868) is a compact wireless indoor siren from the AirShield line, designed for seamless integration with Dahua alarm hubs over the 868 MHz frequency band. Upon alarm activation it emits a powerful sound (≥105 dB at 1 m) to deter intruders and alert occupants. The cable-free design allows installation anywhere using the included wall bracket, with remote management via the DMSS app.
Key features
- Sound pressure level: ≥105 ± 3 dB at 1 m
- Frequency band: 868.0 MHz–868.6 MHz
- Communication range: up to 1,000 m in open space
- Communication: two-way with automatic frequency hopping for stable, interference-free operation
- Encryption: AES128
- Power supply: 2× CR123A batteries, up to 2.5-year battery life
- Power consumption: max. 240 mW
- Housing: PC + ABS, white; dimensions 81 × 81 × 26 mm
- Indicator light: 1× green alarm LED
- Signal strength detection: Yes – monitors link quality to the hub
- Tamper alarm: Yes
- Low battery alarm: Yes
- Temperature measurement: Yes
- Firmware updates: cloud-based with automatic recovery from update failure
- Test mode: Yes
- Operating temperature: –10 °C to +55 °C
- App: Dahua DMSS (iOS / Android)
- Suitable for: apartments, houses, villas, offices – indoor use only
The DHI-ARA12-W2(868) siren is an ideal upgrade for any Dahua AirShield wireless alarm system — tool-free wiring, reliable two-way communication and encrypted transmission deliver a high level of security for B2B projects of any scale.
