DS-PS1-E-WB Hikvision Wireless External Sounder 433 MHz two-way Acusense Series and fisheye

and fisheye

and reliable night after night

or 6mm for the perfect balance of wide coverage or zoomed-in detail

Build-in mic and speaker: the camera supports two-way audio for real-time audio security monitoring and communication

DS-PS1-E-WB Hikvision Wireless External Sounder 433 MHz two-way Acusense Series and fisheyeDS PS1 E WB Hikvision Wireless External Sounder 433 MHz two way This listing includes: (1) ACCESSORIES:DS PS1 E WB DS PS1 E WB view data sheet Wireless External Sounder 433 MHz two way wireless communication 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: 110 dB Fully