it's all in the small details that make the Level lock, touch edition, reliable. I simply used the user's guide and followed it step by step to install it. I simply connected it to my ring video doorbell and basically the rest was withing a touch of my finger (the deadbolt and my smart phone). I was even able to unlock my door when my sister came by when we were away to check on our dogs. It's what every household and generation needs. A smart access and ease of mind