ST207 SAG Pectin Gel Strength Tester, Equipped with Coarse & Fine Adjustment for Precise Alignment and Convenient Measurement Product Introduction The ST207 Jelly Strength Tester is developed and manufactured in compliance with the pectin standard QB2484-2000. It is mainly applied to test jelly strength, also known as Pectin Gel Strength Tester (SAG). Main Technical Features Digital display for depression value, clear and straightforward reading. Digitally controlled timer,