Good News! Hot Selling 7 Inch color video door phone, door phone video intercom unlock

       Good News! Hot Selling 7 Inch color video door phone,  door phone video intercom unlock     Model: PY-V811FA11   Application: Villa, Apartment   Function and Features:   1. 4-wire, 7-inch LCD display                                                                                                                                                                                                                                                                            2. color CMOS camera      3. with 5 meters connection wire    4. with call out, intercom, unlock, monitor function.    5. Max Combination: 6 monitors+1 cameras,  4 monitors+2 cameras   6. Max communication distance: 200m   If you want to know more about us, welcome to visit our website: www.smart-home-security.cn   Related Products, More Choice:     Wiring Diagram: