Tuya Smart Home Apartment Building Call Visual Intercom Video Doorbell Access Control To Lock Connect 6/12 Monitors Video Record

7 Inch Apartment Intercom System Tuya Wifi Video Door Entry System for 6 /8/10/12 Homes Villas Video Door Phone Doorbell Package Contents: There are 4 different sets for option,you may choose your prefer sets, many thanks (SD Card no included in package)   A Kit=1 outdoor unit+6 indoor monitor+ RFID Kefybobs+1 test cable+adapter+accessory pack+manual   B Kit=1 outdoor unit+12 indoor monitor+RFID Kefybobs+1 test cable+adapter+accessory pack+manual   C Kit=1 outdoor unit+8 indoor monitor+RFID Kefybobs+1 test cable+adapter+accessory pack+manual D Kit=1 outdoor unit+10 indoor monitor+RFID Kefybobs+1 test cable+adapter+accessory pack+manual Attention: This is a link diagram display of multiple buttons This is the connection method of the product And the installation method of the electric control lock, Access control power supply and electronic lock require additional purchase