DIY KITS Digital Combo Transistor Tester LCR Diode Capacitance Inductance ESR meter / PWM Signal Generator / frequency meter|kit digital|diy kitesr meter - AliExpress
LEAP#278
DIY kits ATMEAG328 M328 Transistor Tester LCR Diode Capacitance ESR meter PWM Square wave Frequency Signal Generator|tester lcr|generator metermeter lcr - AliExpress