(fencing) A Device Employed in electric powered fencing to detect whether a weapon has struck an opponent, which connects to some fencer's weapon by a spool and system wire. It works by using lights and audio to notify successful, with unique coloured lights for on target and off target hits. https://gabletoppak.com/supporting-sdg-14-life-below-water-through-sustainable-edible-oil-packaging-with-gabletop-cartons/