Dahua Technology ARD821-W2 Wireless Panic Button

• Make: Dahua Technology
• Model code: ARD821-W2
• Weight g: 18
• Dimensions mm: 55 x 36 x 14
• Operating Temp ^oC: -10 ~ 55 C (14 ~ 131 F)

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 center and loved ones Notices of alarm events are sent to the monitoring center to ensure a prompt response Provides multiple LED colors 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