This is a first impressions review of the BSIDE ESR02 Pro Transistor tester. It does much more than just testing transistors and diode’s it also will test resistors, capacitors, and has a square wave generator and more. It will tell you what the transistor is; NPN, PNP, NCH or PCH MOSFET, and what the gain (hfe) is and the pin out. It wii give the voltage drop of a diode as well.

I found this on Amazon for $35.99, but Gearbest might have the better pricing see link that helps me. I think a great price for what it does.

https://www.gearbest.com/testersdete...