Yale Linus communicates directly with your smartphone via Bluetooth. Range varies depending on walls, etc. Opens with a phone or keypad. Share temporary access with a keypad code or the Yale Access app. DoorSense – tells you if the door is open or closed. Automatic locking. Remotely unlock for guests or service providers. Yale Linus is the ultimate solution for combining mechanical opening with a digital lock. Easy to install. Yale Linus replaces the knob on the inside – no requirement to change the lock housing or operate the outside of the door. The safety rating of the door is maintained. Compatible with virtually all doors as no intervention is required. DoorSense will notify you via Yale Access if the door has not closed properly. Yale Linus communicates directly with your smartphone near the lock. If you want to access the lock remotely, Connect allows you to pair the lock with your home WiFi and the app on your phone. The Yale Connect WiFi Bridge is included when you purchase Yale Linus. Access to the app on the go. Direct communication between the lock and app as backup. Get up and running quickly, easily and safely. You can communicate and connect your Yale Linus® directly to your smartphone via Bluetooth. However, for optimal and full functionality we recommend that you pair with Connect if Wi-Fi is available in your house.