Multi-functional LCD Backlight Transistor Tester

Features:
The display is 128*64 LCD with backlight in yellow-green color.
Powered by 9V layer-built battery. 2 li-ion batteries combined can form a 8.4V battery pack for long time power.
New function of boot voltage detection.
Automatically detect NPN and PNP transistors, N-channel and P-channel MOSFET, diodes, triodes, resistors, capacitors or other devices.
Automatically test the pins of a component and display on the LCD.
Measure the gate threshold voltage and gate capacitance of the MOSFET.
Measure bipolar transistor current amplification factor and base-emitter threshold voltage.
One-button operation, automatic shutdown to avoid unnecessary waste.
Short detection time: only 2 seconds. It is normal to cost 1 minute for bulk capacitor detection.
Note:
Please make sure that capacitors are discharged before testing.
The disassembled transistor tester in the picture is just for reference, please don't disassemble.
The pictures of testing process are also for reference, please in kind prevail!