(This review was collected as part of a promotion.) There had been a few times when my tenant has forgotten to lock the door so this electronic lock came at the right time from influenster. We have set a timer for 30 seconds so if we forget to lock the door it automatically locks it which is awesome. Also we can set a combination for us and a different one for the tenant which we love as when tenant leaves we can just change their combination and don’t have to change ours which is absolutely fantastic. It was very easy to install it and then setting up the combination.