Hikvision Ax Pro Internal Siren Wireless DS-PS1-I-WB

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