Hikvision Storage Analog Four Wire Indoor Station DS-KH2220-S battery the device will prompt a

the device will prompt a voice reminder

Up to 2-ch 8 MP IP cameras input

Up to 2-ch @ 8MP or 4-ch @ 4MP or 8-ch @ 1080P decoding capacity

Connectable with up to 16 relays to control floor buttons in the elevator

Up to 250 m data and power transmitting range under Extend Mode

Hikvision Storage Analog Four Wire Indoor Station DS-KH2220-S battery the device will prompt aHikvision Storage Analog Four Wire Indoor Station DS KH2220 S with Hands free video intercom communication, Supports three indoor stations simultaneously in the intercom system, Supports monitoring the door station and the external analog camera, Supports captured image playback, Remote unlocking