I am not at all happy with this deadbolt I wouldn't recommend it to anyone the install was fairly simple it worked for a day or two and then it locked me out of my house right on the box it says no luck out I had to break in through a window because I didn't have a key it came with a key but I thought after two days I would need it that was my bad to get locked out I should've had the key do not buy this lock it's a piece of junk and I also can't believe it took four AA batteries to run it that's ridiculous