SECO LARM DP-121Q Video Door Phone Includes B/W CCD Camera And Monitor With 4-Inch CRT Display. Leds For Day/Night Use, 4-Wire System. C - SECO LARM DP121Q

SECO-LARM is now offering a black and white video door phone. With 6 bright-white LEDs, these units are for use both night and day.
Interconnect up to 2 cameras and 2 monitors.
Easy 4-wire installation.
High-quality CCD camera and 4" flat tube monitor.
Monitor turns on instantly when call button is pressed.
6 Bright white LEDs built-in to help identify night-time visitors.
Simple push-button operation:
Monitor Button: Press anytime to monitor the outdoor area.
Door Key Button: Press to open the door/gate (requires additional hardware such as door strike or other electrical locking device).
Status indicators:
-Power: Lights when power is on.
-Operate: Lights when system in use.
Separate controls for volume, brightness, and contrast.
Includes power supply, cable, and mounting accessories.
DP-121-CQ: Optional additional camera - switchable from monitor.
DP-121-SQ: Optional additional monitor - switchable from either monitor