Hikvision AX PRO Wireless Indoor Siren

Hikvsion AX PRO Wireless Internal Siren 433 MHz two-way wireless communication Configurable arming/disarming prompt sound and LED indicator 3 years battery life span (triggered every two weeks and alerting 90 s for each triggering) AES-128 encryption Front and rear panel tamper-proof 3 kinds of alarm sounds: fire alarm, panic alarm, and intrusion alarm Buzzer Decibel: 90 to 110 dB Fully remote configurable through App Multiple enrollment methods and easy installation design Frequency hopping against jamming for reliable transmission Designed to be used with the Hikvision AX PRO Wireless Alarm Kit Hub and the Hikvision AX PRO Wireless Alarm Kit Gen 2