Product Name: video door phone for building
Price: US$
Detail: SIPO-DS
Intercom system series 2 (above 8 indoor units up to 396 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