This is an economical and widely used transistor detector. You can use it to detect NPN and PNP transistor, capacitor, resistor, diode, triode, N-channel and P-channel MOSFET, triac and battery, etc. used to detect infrared waveforms. Features: It can be widely used to detect NPN and PNP transistors, capacitors, resistors, diodes, triodes, MOSFETs, IGBTs, JFETs, Triacs, etc. It can also detect Zener diode and has the function of self-calibration. <p >After detection, align the infrared remote control with the &#34;&#34; IR &#34;&#34;, then press the button on the remote control. If the detector decodes it, it will display the data code and infrared waveform. One button is enough to detect and stop automatically, and you can also press the multi-function button to close the detector. Put the pins of the component in the corresponding area, then dial the small handle and the detector will test it automatically. The results will finally be displayed on the backlit TFT screen. Unlike the usual black and white display, this detector will display the results in color. < p>Features: Power mode: rechargeable lithium battery Display: 3.5*3cm TFT screen Diode array: &lt;4.5V Zener diode: transistor sensing area: 0.01-4.5V Zener diode detection area: 0.01-30V Triac range: IGT <6mA Capacity: 25pF-100mF Resistance: 0.01-50MΩ Inductance: 0.01mH-20H Battery: 0.1-4.5V Item Size: 8.8 * 8 * 2.8cm / 3.47 * 3.15 * 1.10in Item Weight: 111.5g / 3.94oz Package size: 14.5 * 12 * 2.7cm / 5.71 * 4.73 * 1.06in Package weight: 114g Package list: 1*transistor tester 1*set of electronic components (send randomly)< /p> 3*Test hook（Send randomly) Note: Before testing, please discharge the electronic components to protect the detector. < p>When the voltage and internal battery is under 3V, please charge it before use. Please use 5V battery or USB interface to charge. Note: the data is manual measurements, please allow 1-69cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.