Thermal scanners functioned as a specific kind of scanner with the capability of recognizing a person's heat signature even through barriers like walls or doors. During the year 34 ABY, an operative affiliated with the Bounty Hunters' Guild employed a thermal scanner to pinpoint the whereabouts of multiple bounties concealing themselves within Black Spire Outpost, situated on the planet of Batuu. Subsequently, they provided these locations to the Guildmaster's Hideout in that area.