The Assure Lock® SL can be upgraded with a Yale Access Kit network module to integrate seamlessly to WIFI or can be upgraded with a Yale network module (available in Z-Wave Plus* and ZigBee*) to integrate into most home automation systems. Create up to 25 Unique Pin Codes, adjust lock features and personalise your settings. Touchscreen Keypad to Unlock by entering your PIN code and lock-up with a simple tap of the keypad. 100% Key Free - No cylinder means you don't need to worry about house keys with the Assure SL Lock, the door can always be unlocked using the touchscreen keypad. Aesthetic in Design - Small and slim in design to suit the modern front door design. Retrofit to a 54mm bore hole. Replace your mechanical deadbolt with the Yale Assure SL digital lock. Simple Installation Replaces your existing deadbolt in minutes with just a screwdriver. 9V battery backup to gain access to the lock if the batteries are flat. Battery warning is given prior to batteries running flat. Integrate seamlessly to WIFI or can be upgraded with a Yale network module (available in Z-Wave Plus* and ZigBee*)| Touchscreen Keypad to Unlock by entering your PIN code and lock-up with a simple tap of the keypad| Aesthetic in Design - Small and slim in design to suit the modern front door design