• Simple 2-wire connection
• Built-in microphone and speaker for two-way communication
• Unlock doors with a single button press
• Adjustable color tone, brightness, and contrast
• Adjustable speaker and ringer volume
• Camera has six LEDs for nighttime operation
• 1/3” Sony Super HAD II CCD
• 420 TV Line resolution
• Optional secondary monitor available (model# DP-222-MQ – sold separately)