Dahua Wireless Outdoor Siren, IP65 rated, 12 VDC & Battery PSU, Multi-Alarm Sounds: Fire, Medical, Intrusion, Panic, & more, Temperature Monitoring, Frequency Hopping & 2 Way Communication.Cloud Update & Automatic Recovery from Update Failure, 3 Yr Wrty
"Dahua Wireless Outdoor Siren, IP65 rated, 12 VDC & Battery Power Supply, Multiple Alarm Sounds: Fire, Medical, Intrusion, Panic, & more, Temperature Monitoring, Frequency Hopping & 2 Way Communication. Cloud Update & Automatic Recovery from Update Failure, 3Yr Warranty"
