When visitor rings the doorbell, the image of the visitor appears on the monitor.
Two-way conversation between visitor and attendant.
Able to monitor activity outside any time.
Automatic shut off features.
Built-in night vision in camera.
Functions both as doorbell and security monitoring system.

Outdoor unit, water proof, B/W CCD
Intercom system series 2 (above 8 indoor units up to 296 indoor units)
Image sensor: 1/3-inch CCD B/W
Minimum illumination: 0.5 lux
Viewing angle: 78
Power source: 12V DC
Working temperature: -20 to +50 C
Number of wires: Four
Dimensions: 320 x 125 x 55mm