(fencing) A device used in electrical fencing to detect irrespective of whether a weapon has struck an opponent, which connects into a fencer's weapon by a spool and overall body wire. It employs lights and seem to inform a hit, with different coloured lights for on focus on and off https://gabletoppak.com/why-gable-top-cartons-are-making-a-splash-in-the-water-industry/