FNIRSI LCR-P1 Teardown and X-Ray of Circuit Board (PCB) I have been inundated the last few weeks with other youtubers etc. pushing this brand and this little tester!
I procured the FNIRSI LCR-P1 using personal funds to conduct a Brief technical evaluation, and tear down as no thorough reviews currently exist.
My primary interest centered on the infrared decoding functionality, which exhibits inconsistent performance across different remote control protocols indicating potential areas for firmware optimization or expanded protocol library support. 1/2 the Remotes I have tested were not detected/decoded.
The core LCR measurement capabilities for characterizing passive components (transistors, capacitors, and inductors) demonstrate reliable operation and accuracy within the device’s specified parameters. The mechanical construction quality suggests robust durability for sustained use as an economical benchtop instrument in typical electronics lab handling conditions. Documentation clarity was adequate, and the firmware revision shipped at current release version, eliminating initial update requirements.
My ongoing evaluation includes non-destructive X-ray imaging of both the primary unit and accessory adapters, revealing internal component architecture, PCB stackup configuration, and routing topology.
Yes, I know i Misspelled Transistor on the X-Ray LOL
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X-ray of the Main Unit.
X-Ray of the Adapters.
Preliminary assessment indicates favorable cost-to-performance ratio for this consumer grade class of instrument.
Forthcoming updates will include additional internal photographic documentation. Along with some real World Testing and Comparison to other LCR Meters.
Last Updated on January 24, 2026 by Steven Rhine