7 Inch HD1080P Video Door Phone Intercom System With High Definition Wired Doorbell Camera Support Unlock ,Easy to Install

1.Simple operating system:Built with advanced system, OSD men,Five operating languages (EN / DE / IT / FR / ES), eight different ring tones.Support for viewing the snapshot and recording it directly on the monitor. 2. Video door intercom:You can see and speak to your visitors through the video door phone system when you open the door. This improves the security of your home. 3. HD 1080P resolution:Full 1080P HD quality, more details, more truth,7 inch TFT LCD, slim design and fashionable touch button 4.Via the extension cable:The monitor to monitor, the monitor to doorbell must be wired with 4 wires. We supply 1m 4-pin cable for the basic installation, we supply the 4-wire connectors so that you can connect the extension wires..You can use RVV4 / Cat5 / Cat6 / RG59 cables to extend the distance according to your needs. 5.circuit diagram:The monitor to monitor, the monitor to doorbell must be wired with 4 wires.We offer 1m of 4-wire cable for each doorbell for basic installation and 1.2m of external power supply for each monitor. You can extend the distance with 4-wire cable, shielded cable, CAT5 / CAT6 and RG59 cables.