(fencing) A tool Employed in electric fencing to detect whether a weapon has struck an opponent, which connects to your fencer's weapon by a spool and body wire. It takes advantage of lights and seem to inform a success, with different coloured lights for on focus on and off concentrate https://gabletoppak.com/how-telanganas-amrabad-tiger-reserve-fights-back-against-its-biggest-threat-plastic/