线程监测器（10）的前纱导体（11），具有由金属丝螺旋线（12），在其中一个线程可以从侧面插入并不会滑倒的危险在所有方向偏转而形成的叶子板的形式。 所述叶子板（12）设置有螺纹监测器（10）沿纵向可滑动地布置保持器部分（17），以使线程监测器（10）的固定点（B）的叶子板（12）之间的距离是可调节的壳体（18）。

A front yarn conductor (11) of the thread monitor (10) has the shape of a formed by a wire helix yarn guide eyelet (12), into which a thread can be laterally engaged and deflected in all directions without the risk of slipping. The yarn guide eyelet (12) is provided with a housing (18) of the thread monitor (10) longitudinally displaceably arranged holder part (17) so that the distance between the lappet (12) of the fastening point (B) of the thread monitor (10) is adjustable.