Yale Security Electronic Push Button Deadbolt

Straight forward installation. Programming a bit challenging. This lock works great. This lower cost model doesn't include the wifi card for connecting to a home network but it can be added later. So far battery life is excellent, daily operation problem free. If you bungle the code three times in a row the lock locks you out for a minute. The control panel and casing look and feel great. Important that after installation the locking mechanism moves freely. If the hole on the edge of the door was not drilled perfectly straight the lock may have to be mounted at a slight angle to compensate. In other words, when you look at the lock from the outside or inside the rectangular lock may not be perfectly straight up and down. With my old round mechanical deadbolt the skew was not noticeable (because the lock face was round). If you try to force the Yale to be vertically aligned it may put pressure on the deadbolt slider making it hard to lock and unlock. This will not work with a battery operated lock. It must have zero resistance when you turn the handle on the inside to lock it or the motor will work too hard and the battery life and reliability of the lock will be compromised. Note: I live in an older home with nonstandard doors. You should not have this issue with pre-drilled new doors..