SIREN WRL INDOOR/868MHZ ARA12-W2 DAHUA

- Signal strength detection. - Low battery alarm. - Temperature measurement. - Frequency hopping function and two-way communication technology - Cloud update and automatic recovery from update failure. - Carrier Frequency: 868.0 MHz–868.6 MHz - Communication Distance: Up to 1,000 m in an open space, two-way - Encryption Mode: AES128 - Power Supply: 2 × CR123A batteries - Operating Temperature: –10 °C to +55 °C, indoor only - Battery Life: 2.5 years in working status (triggered twice every week and alerts 120 s for each triggering) - Sound Pressure: ≥ 105 ± 3 dB\1M - Temperature Measuring Range: –15 °C to +65 °C - Product Dimensions: 81.0 mm × 81.0 mm × 26.0 mm