Abstract: A temperature sensor construction suitable for use in mechanically oscillating systems features a protective tube 8 containing a temperature sensor 11, a springy carrier board 1 with conductive tracks 2,3 and terminals 4,5,6,7 for a signal transmission conductor. The carrier 1 is mounted, under spring tension, facing the inner surface of the protective tube 8. The conductive tracks preferably run parallel to the axis of the protective tube and have contacts 4,5 at one end for connection to the temperature sensor 11 and contacts 6,6',7,7' at the other end for connection to the signal transmission leads 12, 12', 13, 13'.