Dahua AirShield Wireless 1x Button Panic Alarm 433MHz 1x Cr2032 - DHI-ARD821-W2 Camera Resolution_16-Megapixel the installer and the end-user

the installer and the end-user

Receive calls from door stations with door release

308 mm × 293 mm × 123 mm (12

it refines its ability to detect specific objects (like humans and vehicles) and significantly reduces false alarms often triggered by irrelevant movements such as animals

4 X 6MP Fixed Turret

Dahua AirShield Wireless 1x Button Panic Alarm 433MHz 1x Cr2032 - DHI-ARD821-W2 Camera Resolution_16-Megapixel the installer and the end-userThe DHI ARD821 W2 is a compact wireless panic button designed to instantly alert monitoring centers or caregivers during emergencies. Whether its an intrusion, fire, gas leak, or medical crisis, this button delivers reliable, encrypted communication with visual LED feedback and accidental press prevention. Built for versatility and quick deployment, its ideal for personal safety across a range of indoor environments. Key Features Multi Scenario