23/UNC12 Color-Coded Expro 23/UNC12 Color-Coded Expro XP23/UNC12 Double-ended instrument with an explorer on one end and a probe (color-coded) on the other. Stainless round shape handle. University of North Carolina. Where to Buy x Category - Any - Dealer Partners Sales Representative Strategic Markets Schools Representative Accutronâ„¢ Equipment Sales Zip Code Find Representative Reset No results found. Please try a different search or explore: Sales Representatives | Dealer Partners | Strategic Markets | Schools | Accutron