Baling presses are fed with huge conveyor belts and are now equipped with the latest person safety-module . Danger is, that the person falls on it and gets into the baling press. To avoid that, an antenna-module is installed over the conveyor belt, which supervised the hole width of the conveyor belt. The person carries a safety-module, either on their arm or clothes. If the safety-module gets into the magnet field, it is immediately detected and the system stops automatically.