FNIRSI makes capable, affordable tools for hobbyists and tinkerers. The LCR-P1 transistor tester stands out because it identifies mystery components for you. It’s a quick diagnostic partner for a cluttered workbench.

Plug in an unmarked transistor, resistor, or capacitor. The 1.44-inch color screen clearly labels the component type and its key values. The replaceable test socket handles everything from tiny SMD parts to larger through-hole components. A 300mAh battery and USB-C charging keep it portable for repairs in the garage or at a project site.

The interface is straightforward, though the menu text can be small. It won’t replace a high-precision bench meter for critical design work. For sorting parts, verifying values, or debugging a circuit, it delivers immediate, practical answers.