Transistor Tester: Automatic detection of NPN and PNP bipolar transistors, N-channel and P-channel MOSFETs, JFETs, diodes (including double diodes), N- and P-IGBTs, resistors (including potentiometers), inductors, capacitors, thyristors, triacs, and batteries (0.14.5V). Automatic detection of zener diodes (0.0120V) Self-test with automatic calibration Specifications: - Zener diode test area - IR receiver window - Micro-USB charging interface - Charge indicator LED - 160x128 TFT display - Multifunction key - Transistor test area - IR decoder: Supports IR coding, IR waveform display, and infrared receiving instruction - Measurement results displayed on TFT graphic screen (160x128) - One-key operation - Auto power-off (timeout settable) - Built-in high-capacity rechargeable Li-ion battery - Li-ion battery voltage detection Note: - Built-in Li-ion battery. Do not immerse the tester in water or place near a heat source. - For personal safety, follow all Li-ion battery handling guidelines and precautions. - Due to different production batches, product appearance, color, and printed text may vary. This does not affect functionality. - Material: Plastic - Color: White + Blue Package Contents: 1 x Tester Kit (Only the above items included; other products not included) Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance: 13 cm.