These units are normally used to increase the number of keys available in an interlocking sequence. For instance if more than one access door needs to be open at any one time. Two versions are available, a modular expandable type HST-X and a more traditional cam type key exchange unit, the HST-X.
These units are normally used to increase the number of keys available in an interlocking sequence. For instance if more than one access door needs to be open at any one time. Two versions are available, a modular expandable type HST-X and a more traditional cam type key exchange unit, the HST-X.
