Key exchange box SD12.S111.MC

Allow you to create sequences of even complex interlocked operations (IF-OR-NOT), ensuring the proper execution of the procedures and therefore the maximum security on the system. These locks work by introducing one or more keys. Once inserted and turned, the keys are now blocked and permit to the operator to extract the other keys which will serve to continue the sequence of operations. Three key distributor. One, the central master, free the other two alternately. The central master key can be turned left or right, thus releasing the corresponding key.