Two-way RF communication Supports multiple types of alarms to meet a wide variety of scenarios, triggering alarms for intrusions, fire, gas leaks, and more It can also be used to notify the monitoring centre and loved ones Notices of alarm events are sent to the monitoring centre to ensure a prompt response Provides multiple LED colours to indicate different statuses Cloud update and automatic recovery from update failure Offers accidental press prevention Battery life up to 5 years if used twice a week IP54 rated
| Make | Dahua Technology |
|---|---|
| Manufacturer | Dahua Technology Ltd |
| Model code | ARD821-W2 |
| Physical Specifications |
Weight g: 18 Dimensions mm: 55 x 36 x 14 |
| Environmental Specifications |
Operating Temp oC: -10 ~ 55 C (14 ~ 131 F) Operating Humidity %: 10 ~ 90 |
| Additional info |
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