KDL 7” Video Doorbell Door Phone Intercom System RFID Access Control with Two-Way Audio/IR Night Vision/Multi Ring/Color HD Camera Monitor for Home Security (1 Monitor)

I gave it 3 stars for a couple of reasons. It is a fail-safe system which means that a connected magnetic lock cannot be powered as the power will only be delivered when the unlock button is pressed so the lock will be unpowered until then! Useless for locking. For a magnetic lock the system needs to be fail-secure (although a magnetic lock is shown in the device ad!). I could only connect it to a magnetic latch lock. Also for the buttons to be operated (inside or outside) one needs to press the activate button first and then the second button. A big and unnecessary inconvenience. Lastly the unlock pulse gives you an extremely short (1 second!) window and so one has to be very quick to unlock the gate! It needs to be a few repeated pulses or given a larger time window in the design. Then there is no mobile integration and that's a pity.Video and sound are good however you need to make sure that no light is shining on the camera lens at night otherwise it is quite difficult to view but this is no fault of the system.

No lo recomiendo ya que es imposible abrir la puerta desde el video portero. Tenemos que salir a la calle para abrir.