HIKVISION Sirena da Interno Wireless Allarme 868MHz DS-PS1-I-WE

Wireless internal sounder 868 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 ...