(fencing) A tool used in electric fencing to detect irrespective of whether a weapon has struck an opponent, which connects to some fencer's weapon by a spool and human body wire. It uses lights and sound to notify a success, with unique coloured lights for on target and off target https://gabletoppak.com/customized-mineral-water-bottles-and-packaged-drinking-water-the-future-of-sustainable-packaging-at-gabletop-pak/