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