A fresh look to the slimmest smart deadbolt in the world. Keeping to the sleek and minimalistic exterior, the Smart Deadbolt 2S Metal Grey comes with more than enough features to rival the big boys. This is the epitome of style and substance. Use PIN codes and Bluetooth keys to unlock the deadbolt, it also comes with physical backup keys so you’ll have access to your home always. Unlock via time sensitive PIN codes or bluetooth keys that you can create and control on our free igloohome app from anywhere in the world. *Physical keys are included as well for flexibility. This smart lock works with innovative technology involving encryption and synchronization, and does not require an internet connection. Being able to work offline makes our security products suitable for properties with weak or no WiFi and eliminates the risk of WiFi hacking. Igloohome integrates seamlessly with Airbnb allowing hosts to synchronize their listing calendars with their igloohome account so that PIN codes are automatically generated and sent to guests, at no extra charge. The app is available for both iOS & Android devices.   Door Compatibility Thickness: 35mm (1-3/8”) to 60mm (2-3/8”)