FNIRSI LC1020E 100kHz LCR Meter - Dual Parameter Tester

In this review the FNIRSI LC1020E is evaluated as a compact bench LCR meter aimed at hobbyists and electronics technicians who need fast, repeatable component measurements. The single biggest reason to buy is its simultaneous dual-parameter display and wide test frequency range up to 100kHz, which makes comparing X, D, Q or ESR against a nominal value straightforward for sorting and screening parts. The meter balances professional four-terminal measurements with user-friendly features like open/short calibration and a bright 2.8 in TFT, making it practical for workshop and lab use.

Key Features

• Dual parameter display: Shows main and secondary measurements such as X and Q or ESR simultaneously so users can assess two key values at once without toggling modes.
• Wide frequency range: Test frequencies from 100Hz to 100kHz let you measure components under conditions closer to actual circuit behavior.
• Smart sorting and comparison: Preset nominal and tolerance with audible and LED alerts speeds up component screening and tracks pass/fail counts for batches.
• Accurate four-terminal testing: 3-pin and 5-slot jack arrangement supports Kelvin measurements for low-resistance and ESR accuracy on small components.
• Adjustable test settings: Open/short calibration, selectable test voltages and internal bias help get reliable readings for capacitors and inductors.
• Portable power and display: A 2.8 in TFT with adjustable brightness and a 3000mAh battery with Type-C charging enable extended bench use.

Who It's For

The LC1020E is best for electronics hobbyists, small repair shops, and educational labs that require a versatile meter for measuring capacitance, resistance and inductance with clear dual-parameter readouts. Its sorting mode and pass/fail tracking are particularly useful when screening large batches of components or rebuilding devices where ESR matters.

It is less suitable for field technicians who need ruggedized gear or very high-speed automated production testers; likewise users who only need a basic handheld multimeter may find many features unnecessary. For measurements on live circuits the manual warns to power down before testing to avoid damage and inaccurate readings.

Pros & Cons

Pros

• Clear dual-parameter display makes comparison easy during troubleshooting and component selection.
• Good measurement range and frequencies up to 100kHz for more realistic component testing.
• Sorting mode with audible/LED alerts and pass/fail counters speeds batch screening.

Cons

• Not intended for live-circuit testing; components must be fully discharged and circuits powered off before use.
• Plastic bench case and consumer-style controls may not satisfy users needing industrial ruggedness.

Specifications

Our Verdict

The FNIRSI LC1020E is a well-rounded bench LCR meter that delivers practical accuracy, flexible test frequencies and a useful sorting/comparison workflow for hobbyists and small labs. Its combination of four-terminal measurement, open/short calibration and battery portability offers good value for technicians who need reliable component screening rather than industrial ruggedness.

Frequently Asked Questions

Does it measure ESR?
Yes, the meter displays ESR along with other parameters and supports sorting based on ESR thresholds.

Can it test SMD parts accurately?
Yes, the four-terminal jacks and Kelvin fixture support low-resistance and small part measurements, improving accuracy for SMD components.

Is it safe to test components in-circuit?
No, the manual instructs to power off and fully discharge capacitors and inductors before measurement to avoid damage and inaccurate results.