A tire pressure monitoring device includes a planar circuit board, a sensor, a controller, and an antenna. The videoconferencing system comprises a plurality of participant locations that may participate in the videoconference. The exercise system includes a plurality of weight members, each having a first face with hook and loop coupling elements of the first configuration and a second face with hook and loop coupling elements of the second configuration. Such image processing parameters are used for executing the image processing on the taken image. Different document states identify different end users and different actions. The modular multifunctional observation device according to the invention can be designed as a compact and light device by using optical components already present in the \u201cbasic system.