(fencing) A tool used in electric powered fencing to detect whether or not a weapon has struck an opponent, which connects to the fencer's weapon by a spool and physique wire. It employs lights and audio to inform a success, with diverse coloured lights for on focus on and off https://gabletoppak.com/aseptic-tetra-pak-vs-non-aseptic-gable-top-choosing-the-right-carton-for-your-needs/