Seat sensor system

A seat sensor system comprises at least one seat sensor for sensing a status related to a seat occupancy and for generating a output signal indicative of said status and a control unit for communicating with said at least one seat sensor. According to the invention the seat sensor comprises a self-powered transmitter associated with a seat for transmitting a data signal containing said output signal and the control unit comprises an receiver module for receiving said data signal from said self-powered transmitter.