(fencing) A Tool used in electrical fencing to detect irrespective of whether a weapon has struck an opponent, which connects into a fencer's weapon by a spool and physique wire. It uses lights and sound to notify a hit, with various coloured lights for on goal and off target hits. https://gabletoppak.com/chikkamagaluru-dc-to-declare-mullayyanagiri-hill-station-plastic-free-zone-on-world-earth-day/