Features： 1、[Automatic Detection] This transistor tester with one key operation, automatic detection and shutdown, you can also press the multi function button to turn off the detector. 2、[TFT Color Screen] Place the pin of the component in the corresponding area, and then dial the small handle, the detector will automatically test, with color screen, and the result will be clearly displayed on the backlit TFT screen. 3、[Self Calibration Function] High speed transistor tester can be used to detect infrared waveforms. It can also detect Zener diodes and has a self calibration function. 4、[Durable Material] The transistor tester is made of high quality ABS material, which is durable, safe, and can be used for a long time. 5、[Widely Application] Widely used to detect NPN and PNP transistors, capacitors, resistors, diodes, transistors, N channel and P channel MOSFETs, IGBTs, JFETs, triacs and batteries. Specification： Name: High Speed Transistor Tester Model: LCR-T7 Battery: Lithium battery 1000mAh (Battery Included) Material: ABS Application: It can measure triode, diode, resistance, capacitance, inductance, thyristor, field effect tube, voltage regulator tube, double diode, light emitting diode Support Language: Chinese, English Display: 3.5 inch TFT screen Diode Range: <4.5V Zener Diode: Transistor detection area: 0.01-4.5V Zener Diode Detection Area: 0.01-30V Triac Range: IGT <6mA Capacitance: 25pF-100mF Resistance: 0.01-50MΩ Inductance: 0.01mH-20H Package List： 1 x Detector (Battery Included) 1 x USB Cable 3 x Detection Pen 1 x Capacitance 1 x Diode 1 x Wire Clamp 1 x Manual