1,WIDE RANGE OF TEST OBJECTS: Our transistor tester is capable of automatically testing a variety of components including NPN and PNP transistors, n channel and p channel MOSFETs, diodes (including dual diodes), thyristors, Mega328, BJT, resistors, and capacitors. You can rely on this versatile device for all your testing needs. 2,ACCURATE AND EFFICIENT TESTING: With our advanced transistor tester, you can expect accurate and efficient testing results. Take with confidence! 3,BUILT IN LITHIUM BATTERY: Our transistor tester comes with a built in lithium battery, offering convenience and effectiveness. Once fully charged, the indicator light turns green, signaling the readiness for testing. No need to worry about finding a power source or replacing batteries. 4,USER FRIENDLY AND SAFE DESIGN: We have designed our transistor tester with user convenience and safety in mind. The device features an automatic shutdown function to preserve battery life and a manual shutdown option for added flexibility. Please note that the charging input voltage should not exceed 4.5V to avoid damaging the tester. 5,COMPLETE YOUR PROJECTS WITH EASE: With the included accessories, our transistor tester allows you to complete your projects with ease and efficiency. No need to search for additional tools or equipment. Experience easy testing and complete your tasks in no time. Item Type: Transistor Tester Kit Material: ABS Battery: Lithium battery x 2 Battery Capacity: 180mAh x 2 (shipped with built in battery) Display: 160 x 128 TFT screen Diode Range: < 4.5V Zener Diode: Transistor Detection Area: 0.01 to 4.5V Zener Diode Detection Area: 0.01 to 20V Bidirectional Thyristor Range: IGT < 6mA Capacitance: 25pF to 100mF Resistance: 0.01 to 50MΩ Inductance: 0.01mH to 20H Application: Can measure triode, diode, resistor, capacitor, inductor, thyristor, field effect tube, regulator tube, double diode, light emitting diode and so on. 1 x Transistor Tester 1 x USB Cable 3 x Test Hooks 2 x Electronic Components 1 x Lamp 1 x Wire Clip 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.