【Calculator DIY Kit】: Powered by USB 5V or 3V button battery. Cfter assembled, you will get a primary calculator and resistor calculator. The kit has the basic function of addition, subtraction, multiplication, and division arithmetic operations, and with decimal points and negative numbers and can be calculated continuously. It can calculate the resistance value of resistors by inputting the color of the color ring.
【With English Installation Instructions】: This electronic kit is not a finished product, it need to be soldered by yourself. You can get detailed and clear instructions by scanning the QR code that comes with the package. If you have any questions, please contact us first for professional help.
【Great Soldering Science Project】: This soldering DIY kit help you understand the basics of working with printed circuit boards and become familiar with a variety of electronic components, and practice soldering skills enjoyably for you and your kids, or students, or DIYers.
【Easy to Assemble】: The connection that was clearly mapped and labeled on the board makes it easy to assemble. And you can refer the marks on PCB board to soldering each component. If it can't work after soldering, please contact us for support.
【Perfect After-Sale Service】: Please read the User Manual before installing. Our policy is to make our customers happy. If any components are missing, please contact us for replacements.
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