Dahua DHI-ARA12-W2 Alarm Wireless Indoor Siren

The Dahua DHI-ARA12-W2 Wireless Indoor Siren is a security device designed for use in various settings, such as homes, apartments, and commercial establishments. It features a loud alarm with a sound pressure level of ≥84 dB to deter intruders. Powered by two CR123A batteries, it offers a battery life of up to 2.5 years. The device uses two-way communication technology and AES128 encryption, ensuring secure and reliable operation over a range of up to 1,000 meters. Additionally, the siren includes tamper detection, low battery alarms, and temperature monitoring. It supports cloud updates for easy maintenance and is compatible with the DMSS app, allowing users to manage the siren remotely. The compact design (81 mm x 81 mm x 26 mm) and simple bracket mount make installation straightforward. Dimension Application Technical Specifications Port Indicator Light 1 × green alarm indicator Button 1 × power button Function Tamper Alarm Yes Remote Upgrade Cloud update Test Mode Yes Low Battery Alarm Yes Search Signal strength detection Wireless Carrier Frequency 868.0 MHz–868.6 MHz Transmitter Power (EIRP) Limit 25 mW Communication Distance Up to 1,000 m (3,280.84 ft) in an open space Communication Mechanism Two-way Frequency Hopping Yes Encryption Mode AES128 General Power Supply 2 × CR123A batteries Power Consumption Max. 240 mW Operating Temperature –10 °C to 55 °C ( 14 °F to 131 °F) (indoor) Operating Humidity 10%–90% (RH). Product Dimensions 81.0 mm × 81.0 mm × 26.0 mm (3.19″ × 3.19″ × 1.02″) (L × W × H) Packaging Dimensions 135.0 mm × 98.5 mm × 56.8 mm (5.31″ × 3.88″ × 2.24″) (L × W × H) Installation Bracket mount Net Weight 105 g (0.23 lb) Gross Weight 175 g (0.39 lb) 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 Battery Life 2.5 years in working status (triggered twice every week and alerts 120 s for each triggering) Sound Pressure Volume high 84 db (A )1 m Volume medium 78 db (A)1 m Casing PC ABS Temperature Measuring Range –15 °C to 65 °C ( 18.8 °F to 149 °F) (indoor) Measuring Precision ± 1 °C (± 33.8 °F) Resolution 1 °C (33.8 °F) Audio/Video Parameter Volume Adjustment 3 volumn levels SKU: DHI-​ARA‌12-​W2 Categories: Dahua, Dahua Airshield Wireless Alarms Tags: dahua alarms, dahua wireless remote control, DHI-ARA12-W2, indoor siren, wireless siren