DHI-ARD821-W2-L

"Two-way RF communication. Provides multiple LED colors to indicate different statuses. Cloud update and automatic recovery from update failure. Offers accidental press prevention. IP54 rated."

"Two-way RF communication. Provides multiple LED colors to indicate different statuses. Cloud update and automatic recovery from update failure. Offers accidental press prevention. IP54 rated."

"Supports 3 shortcut alarms: Medical, fire, and emergency. Arm/Disarm with password or IC card. Supports signal strength detection to select suitable installation sites. Low battery alarm. Temperature measurement."