I guess that's good, but I really don't know what that means.Nice unit! 110 minute fire rating...72HX42Wx27.5D. It looks like an S&G Z-Drive lock too.
"S&G Z-Drive"
When you key in the combination on the keypad you have to rotate the keypad to open the lock. If it has pressure from the door bolt work it doesn't matter as much. You are retracting the lock bolt manually instead of the little motor and the Derlin gear doing it. The lock could last much longer.I guess that's good, but I really don't know what that means.