DHI Keyfob ARA24
DHI Keyfob ARA24
The ARA24-W2(868) is a wireless remote control from Dahua for easy operation of alarm systems built around Dahua's wireless hubs. With four buttons – Home, Away, Disarm, and SOS – the user can quickly switch alarm modes or trigger a panic/emergency alarm directly from the fob.
The remote control also supports control of roller shutters and doors, as well as both local and remote operation. Thanks to two-way communication and frequency hopping, the fob communicates stably and interference-free with the hub at a distance of up to 900 meters in open areas, with support for jamming detection and encrypted communication for added security.
The unit is powered by a CR2032 battery with up to 3 years of battery life and features real-time power consumption monitoring and support for connecting high-power devices. The fob supports cloud-based remote updates (OTA) with automatic rollback if an update fails, as well as several installation methods for flexible mounting.
Key Features
- 4 buttons: Home, Away, Disarm, and SOS
- Control of roller shutters and doors
- Local and remote operation
- Jamming detection and encrypted communication
- Real-time power consumption monitoring
- Support for connecting high-power devices
- Cloud update (OTA) with automatic rollback on failed update
- Frequency hopping and two-way communication for stable wireless connection
- Multiple installation methods
Technical Specifications
| Property | Value |
|---|---|
| Indicator Light | 1 x two-color status indicator (green: normal, red: abnormal) |
| Buttons | 4 pcs (Home, Away, Disarm, SOS) |
| Remote Update | Cloud Update |
| Low Battery Warning | Yes |
| Carrier Frequency | 868.0–868.6 MHz |
| Transmission Power (EIRP) | Max 25 mW |
| Communication | Two-way |
| Range | Up to 900 m in open area |
| Encryption | AES128 |
| Frequency Hopping | Yes |
| Power Supply | CR2032 battery |
| Battery Life | 3 years |
| Power Consumption | Max 100 mW |
| Operating Temperature | –10 °C to +55 °C (indoor) |
| Operating Humidity | 10–90 % RH |
| Dimensions (L x W x H) | 60.0 × 39.5 × 15.0 mm |
| Net Weight | 20 g |
| Gross Weight | 65 g |
| Housing Material | PC + ABS |
| Certifications | CE, EN 50131-1:2006+A1:2009+A2:2017+A3:2020, EN 50131-6:2017, EN 50131-5-3:2017, EN 50131-3:2009, Security Grade 2, Environmental Class II |
| Corrosion Protection | Basic Protection |
| Package Dimensions | 135.0 × 98.5 × 27.8 mm |