1.[Multi-functional Design]: This product combines inductance measurement, frequency measurement, polarized capacitance measurement, and non-polarized capacitance measurement to meet a variety of measurement needs. 2.[LCD Display]: Clear-definition LCD large screen display, digital symbols show clearly, easy to read, greatly improve the measurement efficiency. 3.[SW3 Self-locking Switch Function]: According to the different types of capacitance measurement, improve the measurement accuracy. When measuring nonpolarized capacitance, Sw3 switch is used to adjust when measuring polarized capacitance, Sw3 is used to choose the measurement. 4.[DIY Soldering Set]: DIY soldering practice of loose parts can exercise the hands-on ability and help understand the use of microcontroller knowledge and the principle of frequency, capacitance, and inductance measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.