Craftsman Garage Door Opener Connectivity Hub for 54985, 54990, 54915, and 54918 Craftsman Garage Door Openers Control: Open, close and monitor your Craftsman AssureLink garage door opener from anywhere using your smartphone - have peace-of-mind that your garage door is always closed Security: Check and close your garage door from anywhere Peace of Mind: Never worry if you forgot to close your garage door Convenience: Open your garage door from anywhere for family, friends, deliveries and more. Receive automated alerts when your garage door is open - customize alerts to different times, days, status of the door.