With Passage Function CL515KEY BB. Codelocks heavy duty mechanical digital lock with key override and a 60mm tubular mortice latch. This back to back version features two keypads, full size return to door handles and are suitable for internal or external wooden doors between 35mm and 60mm thick. They also have a key override facility and come supplied with two keys . The CL515KEY also has a passage set function which allows the outside handle to retract freely, without entering a code on the keypad. Please note that the appropriate Codelocks Firekit can be fitted to the lock and latch, which when used together have been tested in accordance with BS EN 1634. Clean by Codelocks is an optional finish available to special order on many Codelock products. The clear coating combats SARS-CoV-2 coronavirus (COVID-19) and can reduce bacterial growth by 99.96%*, providing an additional measure of protection over sanitisation. Clean by Codelocks features an ISO certified photocatalytic coating which offers enhanced protection against viruses, bacteria, germs and other environmental toxins. For full details please view the data sheet in the associated documents or to order please contact our Specials Department.. Key override. Redesigned lever handle for heavy duty use. Non handed. Suitable for wooden doors 35mm-60mm thick