At ITL, we think that convenience should be at the center of all activities. ITL Intelligent Door Lock System offers convenient and innovative door locking solutions for your facilities, without the need to carry keys. Smart door locks are arguably one of the nicest of smart home comforts. They can automatically detect your presence via the Bluetooth connection in your Smartphone (or a Bluetooth key fob) and unlock your front door for you. They let you send electronic keys to your friends that work only during times that you specify.