*This product is from China. Note: before testing, please download the electronic components to protect the detector. When the voltage and internal battery are lower than 3V, Charge before use. Charge with 5V battery or USB interface. This is a cost-effective transistor detector with wide applications. It can be used for the detection of NPN, PNP transistors, capacitors, resistors, diodes, triodes, n-channel MOSFETs, p-channel MOSFETs, thyristors, batteries, etc. it can also be used for the detection of infrared waveforms. N. P-channel MOSFET, NPN, PNP, IGBT, JFET, triac, battery, etc. can also detect zener diodes and have self calibration function. After detection, align the infrared remote control with the infrared light, and then press the button on the remote control. If the detector decodes successfully It will display the data code and infrared waveform. Operate a button to automatically detect and turn off, or press the multi-function button to turn off the detector. Place the pin of the component in the corresponding area, and then mark the small handle, and the detector will automatically test, Finally, the results will be clearly displayed on the TFT backlight screen. This detector will display color results. Specifications: power mode: rechargeable lithium battery display: TFT display 3.5 * 3 cmrange diode: 4.5V zener diode: transistor detection area: 0.01-4.5v zener diode detection area: 0.01-30vrango triac: IGT 6m capacitance: 25pf-100m resistance: 0.01-50m output: 0.01mh-20h material: 0.1-4.5v article size: 8.8 * 8 * 2.8cm / 3.47 * 3.15 * 1.10in article weight: 111.5g/3.94 oz package size: 14.5 * 12 * 2.7cm / 5.71 * 4.73 * 1.06in package weight: 114g / 4.02 oz package list: 1 * transistor tester 1 * electronic component assembly (sent randomly) 3 * test hook (randomly sent) product specifications * about products: all our prices are in local currency. All our products are brand new. The invoice is attached to the package. * shipment: all products are shipped from the warehouse in China. The delivery date is about 20 to 30 days after confirming payment. *Feedback: if you have any problems with your order, please contact us after sales. We will try our best to satisfy you. Please don't leave negative comments or claims before we solve your problems.