Electromechanical Lock

I was pleased to have this high quality deadbolt lock at such a reasonable price. I received it about 3 days earlier than was projected. It is programmable with up to 17 4-digit combinations, so it can be personalized for that many individual users if one wants to. Unfortunately, installing it was not a easy as I had hoped. The hole this lock needs was larger than the one used by my previous deadbolt lock. I needed to dismount the heavy wooden door, carry it to my shop (with assistance), place it on my drill press bed and use a 2 1/8" Forstner bit to get a precision mounting hole. If you don't want to find yourself in the same predicament, make sure your pre-drilled mounting hole is 2 1/8" in diameter. This is particularly important for steel and fiberglass doors. Also, the lock body was just a bit too wide for the trim on my door, so I had to use silicone to seal the gap where the lock overlapped the open trim on the door. All that said, this is a solid deadbolt that is easy to program and easy to install with the included instructions and a Philips head screwdriver. One additional thing to note is that the deadbolt needs to be turned to engage or disengage it once the code is entered. It will not lock and unlock on its own as will some mechanized deadbolts. For me, that is a plus.