FNIRSI® LCR-ST2 Plus 100K LCR ESR Meter 2-In-1 Digital Tweezers Bridge
The FNIRSI LCR-ST2 is a compact dual-mode LCR meter that supports both tweezer and Kelvin-clip testing, ideal for components of any size. It measures R/C/L, diodes, and up to 30V with five test frequencies and a 1.47″ HD display. Features include full-band sweep (100Hz–100kHz), intelligent sorting, dual-mode comparison, magnetic attachment, and a 300mAh battery—perfect for fast, precise testing in any environment.
Features:
- Wide Range Component Measurement.
- Comprehensive Electrical Parameters.
- Five Selectable Test Frequencies.
- Four RMS Test Levels.
- Dual Series/Parallel Equivalent Comparison.
- Full-Band Sweep Mode (100Hz–100kHz).
- Intelligent Sorting with Tolerance Grading.
- Dual-Form Testing: Tweezer Tips + Kelvin Clip.
- Smart Recognition & Display Functions.
- Auto-Rotate Orientation.
- Portable Magnetic Design.
- 1.47″ HD Color Display.
- Long Battery Life & Type-C Charging.

Specifications:
| Parameter | Specification |
|---|---|
| Model | LCR‑ST2 |
| Standby Time | ≈3 H |
| Screen Display | 1.47″ HD Display |
| Dimensions | 31 × 170.7 × 20.3 mm |
| Weight | ≈60.8 g |
| Interface | Type‑C |
| Operating Temperature | 0 °C ~ 50 °C (Humidity ≤ 75%) |
| Storage Temperature | -20 °C ~ 60 °C (Humidity ≤ 75%) |
Inductance (L) – from 38.PNG
| Range | 100Hz / 20Hz | 1kHz | 10kHz | 100kHz |
|---|---|---|---|---|
| 1 H → 10 H | 5% ± 3 digits | 5% ± 3 digits | / | / |
| 1 mH → 1 H | 2% ± 3 digits | 2% ± 3 digits | / | / |
| 10 μH → 1 mH | 2% ± 3 digits | 0.5% ± 3 digits | 0.5% ± 3 digits | 5% ± 3 digits |
| 1 μH → 10 μH | / | 2% ± 3 digits | 2% ± 3 digits | 5% ± 3 digits |
Resistance (R) – from 38.PNG
| Range | 100Hz / 20Hz | 1kHz | 10kHz | 100kHz |
|---|---|---|---|---|
| 1 MΩ → 10 MΩ | 5% ± 3 digits | 5% ± 3 digits | / | / |
| 10 Ω → 1 kΩ | 1% ± 3 digits | 0.5% ± 3 digits | 1% ± 3 digits | 5% ± 3 digits |
| 10 mΩ → 1 Ω | 2% ± 3 digits | 2% ± 3 digits | 2% ± 3 digits | 5% ± 3 digits |
Applications:
- SMD component testing.
- ESR capacitor testing.
- PCB repair and troubleshooting.
- Electronic component sorting.
- Quality control inspection.
- R&D laboratory measurements.
- Electronics manufacturing.
- Educational electronics labs.
- Inductor and capacitor analysis.
- Portable field diagnostics.
Package Included:
- 1x FNIRSI® LCR-ST2 Tweezer.
- 1x storage Bag.
- 1x Kelvin Test Clip.
- 1x Curved Tip.
- 1x Shorting Plate.
- 1x Data Cable.







