Control the linear motion of any kind of textile yarns. When the yarn breaks or when scrolling stops, MCL1 will inform the user (flashing LED) that a position is defective. It can also activate a yarn cutter or stop the position giving a LOW / HIGH signal to an automate. Any kind of material able to keep electrostatic charge can be checked by MCL1. A specific version has been developed for Elasthane yarns (low speed).