DHI Siren Indoor ARA12
DHI Siren Indoor ARA12
The ARA12-W2(868) is a compact wireless siren from Dahua designed for indoor use, built to provide a clear warning signal and deter intruders. The siren features three volume levels and reaches up to 105 dB(A) at 1 meter, offering a powerful deterrent effect in smaller spaces such as homes, offices, and apartments.
Thanks to two-way communication and frequency hopping, the siren communicates stably and interference-free with the hub, with a range of up to 1,000 meters in open areas. The device is powered by two CR123A batteries with a battery life of up to 2.5 years (when alarming twice a week, 120-second sound signal each time), and automatically warns of low battery levels. Cloud-based remote updates, tamper protection, and a test mode provide easy operation and installation. With EN 50131 Grade 2 certification, the ARA12-W2(868) fits well into smaller indoor installations as a complement to Dahua's wireless alarm hubs.
Key Features
- Warning alarm sound with deterrent effect
- 3 volume levels
- Sound level up to 105 dB(A) at 1 meter
- Frequency hopping and two-way communication for stable wireless connection
- Cloud update
- Test mode for easy installation check
- Tamper protection and low battery warning
- Compact and discreet for indoor mounting
Technical Specifications
| Property | Value |
|---|---|
| Indicator light | 1 x green alarm indicator |
| Button | 1 x power switch |
| Volume control | 3 volume levels |
| Tamper protection | Yes |
| Remote update | Cloud update |
| Search | Signal strength identification |
| Low battery warning | Yes |
| Test mode | Yes |
| Carrier frequency | 868.0–868.6 MHz |
| Transmitter power (EIRP) | Max 25 mW |
| Range | Up to 1,000 m in open area |
| Communication | Two-way |
| Encryption | AES128 |
| Frequency hopping | Yes |
| Power supply | 2 x CR123A battery |
| Battery life | 2.5 years (when alarming 2 times/week, 120 sec sound signal each time) |
| Power consumption | Max 240 mW |
| Operating temperature | –10 °C to +55 °C (indoor) |
| Operating humidity | 10–90 % RH |
| Dimensions (L x W x H) | 81.0 × 81.0 × 26.0 mm |
| Net weight | 105 g |
| Gross weight | 175 g |
| Installation | Bracket mount |
| Housing material | PC + ABS |
| Certifications | CE, EN 50131-1:2006+A1:2009+A2:2017+A3:2020, EN 50131-4:2019, EN 50131-6:2017, EN 50131-5-3:2017, Security Grade 2, Environmental Class II |
| Package dimensions | 135.0 × 98.5 × 56.8 mm |
| Sound pressure | High volume: 105 dB(A) at 1 m (in anechoic chamber: high 84 dB(A), medium 78 dB(A) at 1 m) |