The Regulator Tester KAL-EQUIP CO. Model T-141 is a vintage automotive diagnostic tool that is designed to test regulators in vehicles. This analog display tester is manufactured by KAL-EQUIP CO and has a specific manufacturer part number of T-141. While the product is untested, it offers a unique solution for troubleshooting and maintenance tasks in automobiles, particularly in diagnosing potential issues with vehicle regulators.