FNIRSI LCR-ST1 LCR Meter Tweezer — Auto Recognition, ESR & Capacitance Tester

Meet FNIRSI LCR-ST1: a portable LCR and component tester

The FNIRSI LCR-ST1 brings precise LCR and diode testing into a compact, handheld form. Its bright 1.14" HD color display, intuitive controls, and automatic component recognition help you work more efficiently on busy benches or in the field. This tool is designed to support resistance, capacitance, inductance, and diode measurements while clearly presenting both primary and secondary parameters. It’s a versatile companion for quick checks, board repairs, and component recovery, without making promises about outcomes—readings depend on the part and setup.

Key capabilities at a glance

• Three test frequencies: 100 Hz, 1 kHz, 10 kHz, paired with two test voltages (0.3 Vrms and 0.6 Vrms) for flexible signal conditions.
• Broad ranges: R from 10 mΩ to 10 MΩ; C from 1 pF to 22 mF; L from 1 μH to 10 H; plus ESR and standard LCR readings.
• Auto recognition of electronic components with on-screen display of primary and secondary parameters, helping you interpret results quickly.
• Data storage that automatically saves test records and easy export to PC-compatible Excel files for documentation or analysis.

Practical use cases

• Fastly identify defective parts on SMD boards during repairs, reducing debugging time.
• Efficiently locate circuit faults and recover usable components from older assemblies.
• Test components in the field or on the bench, aided by the portable form factor and included storage bag.

Design, power, and accessories

The LCR-ST1 features a fixed screen orientation (no flip/rotate) to maintain a compact footprint. It ships with two tweezer heads—pointed and hook—for testing different part geometries, and it charges via a standard data cable. The built-in storage bag keeps the tester and accessories organized so you’re ready for work anytime.

Who benefits

Electronics hobbyists and professionals who value speed, clarity, and portability will find the FNIRSI LCR-ST1 a practical addition to their toolkit. It supports quick comparisons, easier data logging, and convenient field testing without relying on multiple tools or external software.