Packrat, and more
In fact the access to the unit is maintained through a computer supported program which allows only authorized person to pass through doors. In other words, the tenant has the key to the lock of the unit. Security is further enhanced by use of security cameras. Another benefit in self storage is that one may rent only that space which he needs and no space is left unused. No space is wasted in the process which would have otherwise left unused in old fashioned warehouses.