Features:

• Highly Expandable System:
  Up to 3 additional monitors and one additional door station can be connected to the main monitor.
• 7-inch Screen:
  The main monitor and extension monitor have 7-inch wide (800×480 pixels) screen. That offers easy viewing of wide, vertical and horizontal views.
• PBX connectivity:
  It can connect to PBX. Only Panasonic PBX is compatible.
• Voice Change Function:
  This function makes woman’s voice (higher keys) sounds like a man’s (lower keys).
• Electric Lock Release Support:
  The electric locks release support is available. It can control 2 electric locks individually.
• Picture Recording Function:
  Eight consecutive still images of visitors are automatically recorded even you are not at home. Up to 50 times, 400 images in total. This ensure you will see every person visiting your home.
• Night Vision with LED lights (illumination lamp):
  Door station is equipped with LED lights (illumination lamp). It enables the color and clear display of visitors at a distance of about 50 cm at night.
• Intercom Calls:
  VL-SV71BX can make intercom Calls between the main monitor and extension monitor).
• View Angle:
  Horizontal approx. 87, Vertical approx. 66.
• Wires:
  0.5 to 1 mm thick wire for connection for door station to main monitor and main monitor to extension monitors. it depends on the distance between devices.
  0.5 to 1.2mm for electric lock depends on type of the locks and distance from main monitor.
• Wiring: Just 2 non-polar wires for connection between door station to main monitor and 2 non-polar wires to connect main monitor with extension monitors.