(fencing) A tool used in electrical fencing to detect irrespective of whether a weapon has struck an opponent, which connects to some fencer's weapon by a spool and overall body wire. It uses lights and audio to notify a success, with distinctive coloured lights for on target and off goal https://gabletoppak.com/from-plastic-bottles-to-gabletop-cartons-a-step-toward-solving-the-plastic-pollution-crisis/