The yale value safe range uses digital keypad code entry with key back up these safes offer 10000 possible combinations using a 3 8 digit programmable code plus a time lock feature which operates after 3 incorrect entries 20 secs and 6 incorrect entries 6 minutes 16mm locking bolts are retracted by the handle once the correct code has been entered or back up key is used led light indicators green to open red for error and low battery warning each safe is supplied with fixings batteries and 2 k