DESC: This Video Intercom Door Bell System is a multi-purpose product for monitoring and visually identifying visitors before letting them in your home The visitor presses the outdoor section button and the inside station sound will stroke a chime. The visitor will automatically appear on the black and white monitor and the user has the option to pick up the phone to answer or simply monitor the visitor. The indoor station has 4-inch CRT screen and features monitor warning and unlock buttons. The outside station features a 1/3-inch black and white CCD camera 92-degree camera angle and includes mounting hardware. This system has night vision capabilities giving you complete images outside in the dark. The entry area can be monitored (audio and video) by pressing the monitor button. This Video Intercom System is simple to install and will provide reliable monitoring operation Features: 4-inch black and white Flat CRT display Visually identify visitors before le