Unlock with passcode,or physical key?2 backup keys include)

This Smart Auto Door Lock can lock and unlock automatically.  the only thing you need to do is to input your door lock passcode, then the lock unlocks itself, It will lock itself also with a time span set.

Support garbled code operation, with passcode privacy protection function.

This lock is used outdoors and indoors, it is designed to be exposed to sunlight or rain, the waterproof rating: IP45. Electronic keypad deadbolt features solid zinc alloy ,and durable stainless steel frame. 4 x AA alkaline batteries can be unlocked about 5000 times (more than 6 months).

It is very easy to install and comes with everything needed for a quick DIY installation. .