I've had a Samsung SHP-A30 door lock on my old office building and loved it so much that I had one installed on my new office. It's a fantastic way to eliminate the need for keys, especially with staff, so there's no need to mess about with lost keys, having them returned at the end of someone's employment, etc. I also use it to assign temporary access codes for our office cleaners, plus, I get a log and notifications of when, and who, opens or locks the door. Using fingerprints is simple, and h...