DS-PSI-I-WB Hikvision Wireless Internal Sounder 433 MHz two-way Hikvision DVR and built-in PoE ports

and built-in PoE ports

And with remote access support through Hik-Connect

Expandable Storage — Support for up to 10TB HDD lets you archive more history

Wide 106° View — covers larger areas with fewer cameras

backup and remote access

DS-PSI-I-WB Hikvision Wireless Internal Sounder 433 MHz two-way Hikvision DVR and built-in PoE portsDS PSI I WB Hikvision Wireless Internal Sounder 433 MHz two way This listing includes: (1) ACCESSORIES:DS PSI I WB DS PSI I WB view data sheet Wireless Internal Sounder 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,