The HDI arena is actually a football stadium. During the summer break, however, the home of Hannover 96 is also used for open air concerts. For security reasons, numerous locking cylinders had to be replaced ahead of time for these events. Now that Winkhaus blueSmart electronic access management secures the complex, the expenditure is a thing of the past. The stadium accommodates crowds of nearly 50,000. 29 VIP boxes and over 1200 business seats round of the comfortable range on offer. The arena also regularly presents prominent audience favourites during the season. Thanks to blueSmart, the necessary change of locking rights – i.e. in the changing rooms – can now take place in only an hour. Previously, one employee was occupied for two days replacing the mechanical door cylinders for each event. Now every person receiving access authorisation is simply given a blueSmart key. Their locking rights automatically expire after the event is finished. Another reason for purchasing an electronic locking system was the number of lost mechanical keys, which had become an ever greater security problem. Before the final decision was made, a tender process and a three-month test phase was carried out, during which blueSmart proved its worth admirably. The doors were converted quickly and easily. The high-performance technology also works without knobs, which are often the target of vandalism and can also be used as a climbing aid. And last but not least, the many advantages of virtual networking convinced the stadium operator, Hannover 96 Arena GmbH & Co. KG.