The invention concerns a device for signal transmission from a signal transmitter which senses physical operating conditions to a separately installed signal receiver. In order to create a device by means of which the player of a PC or video game is given the possibility of interactive engagement in the course of the game, whereby said device is compatible, for purposes of control, with all of the video game consoles and PCs commonly to be found in trade, the invention proposes a device for signal transmission, wherein an electronic circuit is connected to the signal transmitter, on one hand, and to the signal receiver, on the other hand, and the signals generated by the signal transmitter may be converted, by means of said electronic circuit, to the structure required for the signal receiver, whereby the signal transmitter, in order to sense at least one physical operating condition, is connected to an exercise machine, and whereby a PC or a video game console is provided as the signal receiver.