(fencing) A Device Utilized in electric fencing to detect whether a weapon has struck an opponent, which connects into a fencer's weapon by a spool and body wire. It takes advantage of lights and audio to inform a success, with distinctive coloured lights for on target and off target hits. https://gabletoppak.com/the-growing-threat-of-marine-pollution-and-how-gabletop-cartons-offer-a-solution/