ARA24-W2-868-B 868MHz Wireless Remote Control with SOS, AES128, and 900m Range for Alarm Systems - Dahua
ARA24-W2-868-B The wireless remote control, with a compact and elegant black design, represents an advanced solution for managing alarm systems, ideal for residential and commercial environments. Equipped with two-way communication and frequency hopping technology, it guarantees a stable and secure connection up to 900 meters in open fields , with data protection via AES128 encryption . It integrates a practical SOS button for emergencies , as well as arming, disarming and home/absence mode functions, offering immediate and intuitive control. The presence of automatic cloud updates and low battery detection ensures operational continuity, while the long battery life of up to 3 years optimizes its use over time. Dahua
ARA24-W2-868-B | WIRELESS KEYFOB - 4 BUTTONS - SOS ALARM BUTTON - TWO-WAY WIRELESS - 868MHZ FREQUENCY

The black Dahua ARA24-W2-868-B wireless remote control is an advanced solution for controlling security systems, designed for reliability and ease of use in residential and commercial settings. Thanks to two-way communication and frequency-hopping technology, it ensures stable and secure connections up to 900 meters in open fields. It features a practical SOS button for emergencies and allows complete management of alarm modes with a simple click. Data security is guaranteed by AES128 encryption , while automatic cloud updates and battery monitoring improve operational efficiency. The long-lasting battery offers up to 3 years of battery life, making it ideal for continuous use.
Main specifications:
- Stable two-way communication with frequency hopping technology for maximum reliability
- Wireless range up to 900m in open field for extended coverage
- Integrated SOS button for immediate emergency management
- AES128 encryption for advanced data protection
- Automatic cloud updates and low battery detection
- Up to 3 years of battery life with a high-efficiency CR2032 battery
Further details
It uses advanced 868 MHz frequency technology and two-way communication , ensuring stable and secure data exchange. Frequency hopping reduces interference and improves signal continuity, while AES128 encryption protects communications. It offers a range of up to 900 meters in open fields , ideal for installations in large and complex environments.
Technical data sheet
| ARA24-W2-868-B | |
| Function | |
| Indicator Light | 1 × two-color status indicator (green: normal, red: abnormal) |
| Button | 4 (Home, Away, Disarm, and SOS) |
| Remote Update | Cloud update |
| Low Battery Detection | Yes |
| Wireless | |
| Carrier Frequency | 868.0 MHz–868.6 MHz |
| Transmitter Power (EIRP) | Limit 25 mW |
| Communication Mechanism | Two-way |
| Communication Distance | Up to 900 m (2,952.76 ft) in an open space |
| Encryption Mode | AES128 |
| Frequency Hopping | Yes |
| General | |
| Power Supply | CR2032 battery |
| Battery Life | 3 years |
| Power Consumption | Max. 100 mW |
| Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) (indoor) |
| Operating Humidity | 10%–90% (RH) |
| Product Dimensions | 60.0 mm × 39.5 mm × 15.0 mm (2.36" × 1.56" × 0.59") (L × W × H) |
| Net Weight | 20 g (0.04 lb) |
| Gross Weight | 65 g (0.14 lb) |
| Casing Material | PC + ABS |
| Certifications | THERE IS EN 50131-1:2006+A1:2009+A2:2017+A3:2020 EN50131-6:2017 EN 50131-5-3:2017 EN 50131-3:2009 Security Grade 2 Environmental Class II |
| Anti-corrosion Level | Basic Protection |
| Packaging Dimensions | 135.0 mm × 98.5 mm × 27.8 mm (5.31" × 3.88" × 1.09") (L × W × H) |


