Accessories / AcesoriosUPG Yarn Break Detector Sensor Thread tension detector Posted on October 9, 2012 by admin UPG Yarn Break Detector Eltex Thread Break detector The UPG is a small, inexpensive, general purpose yarn break detector in a robust metal housing. Optocoupler output suitable for PLC or other electronic control devices. The ceramic sensor part can be used either as a closed eyelet or as an open bar. Several detectors can be connected in parallel. Modular connector for quick connection. admin Union Special 80800 series Kansai Special HDX 1101 and HDX 1102