
I was a bit concerned because so many people have written about the complexity of programming, but no problem here. I followed the simple graphical instructions and was able to change the master code the first time. SCAYN may have updated the instructions, but it was easy. For our wine cellar we use a lock on the inner door. It has a lot of nice features, but my favorite thing is that you can keep it unlocked by just pressing the * key after entering the code. This is handy when we have people and we close the door but want to make it easier to re-enter. Installation 15 minutes.

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