Abstract: An in-room safe monitoring, billing and tamper warning system that uses short range radio signals to pass the information to the internet, telephone system or any other Building Wide Communication Network (BCN). Attached to this BCN are the hotel's main computers used for security and billing. Thus the hotel staff can be informed of both usage and receive theft warning alarm messages through their regular computer network. The unique feature of this system is that data can be sent from any location in the room wirelessly throughout the room. A different code is associated with each and every safe, so that if the signal penetrates to the next room there will be no confusion. Once the signal reaches the wall, it is picked up by a data receiver and converted into the BCN format of choice for that building. Thus local short range radio communication can be used for building wide coverage in a huge hotel.