Intelligent key storage for mounting on the wall inside and in protected outside areas that is secured by means of a four-digit number code which can be changed quickly and easily – 10000 different codes are available for this purpose. It is therefore ideal solution for vehicle rental companies, for example, owners of holiday homes or for use in the field of mobile healthcare. The solid metal housing and strong locking cover made from pressure-cast zinc secure against unauthorised access as required. A plastic cover also protects the number mechanism against the effects of the weather.