This integrated circuit tester can be used to test logic chip, 74HC, 74LS, CD40, 45/145, driver, operational amplifier, comparator, optocoupler, diode, Zener diode, light emitting diode, triode, field more→tube, thyristor and other types of chips. This tool can greatly reduce the maintenance workload and improve maintenance efficiency. Features: This integrated circuit tester can be used to test logic chip, 74HC, 74LS, CD40, 45/145, driver, operational amplifier, comparator, optocoupler, diode, Zener diode, light emitting diode, triode, field tube, thyristor and other types of chips. Built-in more than 1300 kinds of chip data models, more than 420 kinds of transistor data models. Cover most common …