Samsung Fire rated Smart Lock keyless
It locks automatically (or you can turn that off), you can program up to 10 (or maybe it’s 100!!) codes, it has emergency battery access (you hold a 9V against the side) if battery fails but it plays fur Elise if you need to change and you have about a week to change batteries. It has 4 fobs. It has a false 2 numbers to enter before your 4 digit code so thieves can’t figure out code by looking for fingerprint marks on just 4 numbers Fire rated - above 65 degrees will automatically release lock