... international standards 2.high accuracy and safety Transistor Mulifunctional Selector-UI9600A Specification:• Measure parameters: 1) β(0~99)2) Switching time T ... voltage, etc.UI9611: MOS Transistor Characteristics Selector.UI9600: Transistor Tester.UI9600A: Transistor's Multi-Functional Selector. Contact us for more info ...