The FNIRSI LCR-ST2 is a smart tweezers LCR meter with the ability to measure resistance, capacitance, inductance, diodes and voltage up to ±30 V. It supports frequencies from 100 Hz to 100 kHz, test voltages from 0.1 to 1.0 V, has a 1.47 inch HD display and USB Type-C charging.

The FNIRSI LCR-ST2 is a compact digital LCR bridge meter with dual-mode, tweezers or Kelvin clamp, designed for precise testing of electronic components of various sizes. It allows measurement of resistance, capacitance, inductance, diodes and voltage up to ±30 V and supports five test frequencies from 100 Hz to 100 kHz and four RMS test voltages.

The device supports series and parallel equivalent modes, intelligent tolerance sorting of components, and full-band frequency sweep for frequency response analysis. It automatically recognizes R, C, and L components, allows the display of multiple electrical parameters, and has automatic screen rotation for left- and right-handed users. It is suitable for laboratory work, service, and field use.

– Measurement of R, C, L, diodes and voltages up to ±30 V

– Five test frequencies 100 Hz to 100 kHz

– Four test voltage levels 0.1 V to 1.0 V

– Series and parallel equivalent mode

– Automatic component recognition and intelligent sorting

– 1.47 inch color HD display with auto-rotation

Technical features:

– Model: LCR-ST2

– Device type: digital tweezers LCR meter

– Color: not specified

– Dimensions: 31 x 170.7 x 20.3 mm

– Weight: approximately 60.8 g

– Display: 1.47 inch HD color display

– Interface: USB Type-C

– Operating temperature: 0 °C to 50 °C, humidity up to 75%

– Storage temperature: -20 °C to 60 °C, humidity up to 75%

Measuring ranges:

– Resistance: 10 mΩ to 10 MΩ

– Capacitance: 1 pF to 22 mF

– Inductance: 1 µH to 10 H

– Diode: forward voltage up to 0.7 V

– Voltage: ±30 V

Test settings:

– Test frequencies: 100 Hz, 120 Hz, 1 kHz, 10 kHz, 100 kHz

– RMS test voltages: 0.1 V, 0.3 V, 0.6 V, 1.0 V

Power supply:

– Built-in 300 mAh lithium battery

– Operating time: approximately 3 h

– Charging: USB Type-C

Package includes: 1x Fnirsi LCR-ST2 tweezers meter, 1x Carrying case, 1x Curved test tip, 1x Shorting plate, 1x Kelvin test clip, 1x USB cable, 1x Instructions

Warranty: 12 months

Weight: 0.160kg

Dimensions: 31 x 170.7 x 20.3 mm

Manufacturer:

Shenzhen FNIRSI Technology Co., Ltd.
8F, Weihuada Industrial Park C building West, Li Rong Road Da Lang Street, / Longhua District
518109 Shenzhen
China
jason@fnirsi.com

Data of the responsible person in the EU:

Tech Trade doo Trzin
Blatnica 8
1236 Trzin, Slovenia SL
info@techtrade.si

Same summary

The Fnirsi digital multimeter smart tweezers LCR bridge LCR-ST2+ is suitable primarily for home users and hobbyists looking for a practical tool for basic electrical measurements. Due to its digital and handheld design, it allows for quick and portable use, which makes it easier to find faults in electrical components and home wiring. The device is especially useful for quick inspections and tests of components directly on printed circuit boards, where the tweezers shape is appreciated. For more demanding laboratory measurements or industrial environments, however, the lack of advanced functions or robustness typical of larger and more powerful models may be a limitation.

Recommendation source: Enaa guides and team experiences.

User view

This multimeter is most often used by individuals who undertake repairs or electrical measurements at home, in the garage or in the field. Its smart tweezers design is very practical for those who frequently check capacitors, resistors and other small components on printed circuit boards, as it allows for easy and quick detection of errors.

Users trust the Fnirsi brand primarily due to the good availability of useful electrical measuring tools that are easy to use in everyday situations.

Why buy at Enaa

When purchasing a multimeter at Enaa, you can count on a clear and transparent presentation of the tools, as well as professional advice tailored to consumer needs, and accessible support in case of additional questions regarding use and the appropriate choice for your case.

Answers to frequently asked questions

What types of measurements is this multimeter best suited for?

The device enables efficient measurements of resistance, capacitance, and inductance, which is especially useful for testing electronic components and quickly troubleshooting home appliances.

Is using a tweezers meter safe for beginners?

Since it is a digital and manual model with easy operation, it can also be used by less experienced users. However, it is recommended to always check the suitability of the measurement range for the desired test before use and avoid measuring higher voltages if you do not have sufficient knowledge.

How compact is the device compared to conventional multimeters?

The clever tweezers design makes this model extremely compact and lightweight, making it very convenient to carry in your tool bag or even in your pocket when working in different locations.

Is this model also suitable for measurements outdoors or in humid areas?

For basic outdoor use, the portability of the device is a great advantage, but it is not specifically designed for use in very humid environments or in demanding weather conditions. In such cases, we recommend that you additionally check for the presence of moisture protection.

Does a multimeter allow you to work with automotive electrical systems?

It is suitable for quick checks and basic diagnostics of automotive components such as batteries, fuses or electrical connections, although for more demanding repairs we recommend models with a larger measuring range and additional safety features.

Description updated: April 2026