EXHIBIT 10.19 FOURTH AMENDMENT TO THE LOAN AND SECURITY AGREEMENT Fourth Amendment dated as of May 11, 2000 (this "Amendment") to the Loan and Security Agreement dated as of December 31, 1997 (as amended and modified, the "Loan Agreement"), among...Loan and Security Agreement • May 15th, 2000 • Sentry Technology Corp • Communications equipment, nec • New York
