描述
ARA24-W2(868)
Dahua Wireless Keyfob
ARA24-W2(868) 屬大華防盜警報產品。傑成系統有限公司（香港防盜）為大華產品安裝商及經銷商，可提供供應、安裝、調試、保養及維修。方案可參考防盜系統。規格以原廠資料為準。
規格
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 | CE 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) |
